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Original price was: 5,500৳ .4,800৳ Current price is: 4,800৳ .Save 700৳ (-13%)
The Comfy TENS EV-804 is a Taiwan-made digital physiotherapy machine that relieves back pain, knee pain, neck pain, sciatica, and muscle pain without medication. Using advanced TENS (Transcutaneous Electrical Nerve Stimulation) technology, it delivers safe electrical impulses through electrode pads to block pain signals and stimulate natural endorphin release. With 2 channels, 5 therapy modes, large LCD display, and adjustable intensity, this is Bangladesh’s most trusted home physiotherapy machine. Comes with 1 year official warranty, free home delivery in Dhaka, and cash on delivery available.
The Comfy TENS EV-804 Digital Physiotherapy Machine is one of the most trusted and widely used TENS therapy machines in Bangladesh. Manufactured in Taiwan with medical-grade precision, this device uses Transcutaneous Electrical Nerve Stimulation (TENS) technology to deliver safe, non-invasive, drug-free pain relief directly at home. Whether you are suffering from chronic back pain, knee pain, neck pain, sciatica, arthritis, or post-injury muscle pain — the Comfy EV-804 provides clinically proven relief without any side effects.
Physiotherapists and doctors across Bangladesh recommend this Comfy physiotherapy machine for both home use and clinical settings. With its dual channel design, 5 therapy modes, large LCD display, and intelligent memory function, the Comfy TENS EV-804 stands as the best value physiotherapy device available in Bangladesh today.
The Comfy TENS EV-804 is a battery-operated digital TENS unit that sends gentle, controlled electrical impulses through adhesive electrode pads placed on the skin near the painful area. These impulses work in three medically proven ways:
1. Blocks Pain Signals: The electrical impulses intercept pain signals traveling along the nerves before they can reach the brain — providing immediate relief. This is known as the Gate Control Theory of pain management.
2. Releases Natural Endorphins: TENS stimulation triggers the body to produce endorphins — the body’s own natural painkillers — providing longer-lasting relief even after the session ends.
3. Improves Blood Circulation: The gentle electrical current increases blood flow to the affected area, reducing inflammation, speeding up tissue healing, and relaxing tight muscles.
As a dual channel TENS machine, the Comfy EV-804 controls two independent channels with 4 electrode pads simultaneously — allowing you to treat two pain areas at the same time. This makes it significantly more effective than single-channel devices available in Bangladesh.
| Specification | Details |
|---|---|
| Brand | Comfy |
| Model | EV-804 |
| Country of Origin | Taiwan (Made in Taiwan) |
| Therapy Type | TENS – Transcutaneous Electrical Nerve Stimulation |
| Channels | 2 Channels (Dual Channel) |
| Electrode Pads Included | 4 pcs reusable self-adhering pads |
| Therapy Modes | 5 Modes: Normal, Burst, Modulation, SD-1, SD-2 |
| Pulse Amplitude | Adjustable 0–100 mA peak (into 500 ohm load) |
| Pulse Rate | 2–150 Hz (1 Hz per step) |
| Pulse Width | 50–300 microseconds (10 µs per step) |
| Wave Form | Asymmetrical Bi-Phasic Square Pulse |
| On Time | Adjustable 2–90 seconds (1 sec per step) |
| Off Time | Adjustable 0–90 seconds (1 sec per step) |
| Display | Large LCD – shows all settings simultaneously |
| Power Supply | 9V Battery (included) |
| Weight | 150 grams |
| Color | Silver Grey |
| Dimensions | 24 x 22 x 6 cm |
| Warranty | 1 Year Manufacturer Warranty |
| Low Battery Indicator | Yes |
| Memory Function | Yes – saves last used settings automatically |
| Belt Clip | Unbreakable stainless steel belt clip |
Normal mode delivers steady, consistent electrical stimulation at a fixed frequency. It is the most widely used mode for chronic lower back pain, neck pain, and general muscle pain. Recommended for first-time users and daily pain management sessions. Most physiotherapists in Bangladesh start their patients on Normal mode.
Burst mode sends electrical pulses in short repeated bursts, replicating the effect of a rhythmic deep-tissue massage. Highly effective for muscle tension, shoulder stiffness, post-exercise soreness, and trigger point therapy. Burst mode is also known to stimulate higher endorphin release compared to Normal mode.
Modulation mode continuously varies the wave intensity, frequency, and pulse width in a rhythmic pattern to prevent the nerves from adapting to the stimulation. This makes it especially effective for arthritis, joint pain, knee pain, and stiffness — it keeps the therapy fresh and consistently active throughout the session.
In SD-1 mode, the intensity progressively increases while the pulse width simultaneously decreases. This waveform pattern specifically targets nerve pathways, making it the most effective mode for sciatica, neuropathy, radiculopathy, and radiating nerve pain. Physiotherapy clinics in Bangladesh use SD-1 extensively for post-injury nerve rehabilitation.
SD-2 mode alternates the SD-1 pattern in both directions — intensity increases and decreases while pulse width simultaneously changes in the opposite direction. This bidirectional stimulation pattern is used for muscle strengthening, post-stroke muscle re-education, and rehabilitation therapy to restore neuromuscular function.
The oversized LCD screen displays mode name, intensity level, pulse rate, and treatment timer simultaneously. You never have to guess your current settings — everything is visible at a glance, even for elderly users or those unfamiliar with physiotherapy devices.
The Comfy EV-804 automatically stores your last used settings. Every time you switch the device on, it returns to your preferred mode and intensity — eliminating the need to reconfigure before every session. This is a feature most budget TENS machines in Bangladesh do not offer.
With two independent output channels, you can place 4 electrode pads on two separate pain areas and treat both at the same time. This doubles the effectiveness of each therapy session — a major advantage over single-channel devices.
Set your desired session duration and watch the countdown timer on the LCD. The device notifies you when the session is complete — preventing over-stimulation and ensuring safe, controlled therapy every time.
At only 150 grams, the Comfy EV-804 fits in your shirt pocket or handbag. The stainless steel belt clip lets you wear it on your waist during therapy — walk, sit at your desk, or rest while receiving continuous pain relief treatment.
The flip-top protective cover has simple usage directions printed on the inside — no need to keep the manual nearby. This is especially convenient for elderly patients using the machine independently at home.
The LCD displays a low battery warning before power runs out completely — ensuring your therapy session is never interrupted without warning.
Unlike plastic clips that break with daily use, the Comfy EV-804 features a heavy-duty stainless steel clip rated for long-term daily wear. This makes it ideal for working professionals who use the device continuously throughout the day.
The Comfy TENS EV-804 physiotherapy machine is clinically used and recommended by doctors and physiotherapists in Bangladesh for the following pain conditions:
Lower Back Pain: The number one reason people buy a TENS machine in Bangladesh. Effective for both acute and chronic lower back pain caused by sedentary work, poor posture, disc problems, or muscle strain.
Neck Pain and Cervical Spondylosis: Ideal for office workers, students, and anyone who uses a computer or smartphone for extended hours. Reduces stiffness and nerve compression in the cervical spine.
Knee Pain and Osteoarthritis: A proven non-surgical, drug-free option for elderly patients with joint degeneration, cartilage wear, or post-knee injury pain. Widely used in physiotherapy clinics across Dhaka.
Sciatica: The SD-1 and SD-2 modes target the sciatic nerve pathway, providing relief from the radiating pain that travels from the lower back through the buttocks and down the leg.
Frozen Shoulder and Rotator Cuff Pain: Reduces inflammation and muscle guarding around the shoulder joint, improving range of motion over repeated sessions.
Arthritis: Modulation mode specifically manages arthritis pain in both large joints (knee, hip, shoulder) and small joints (fingers, wrists, ankles) without medication.
Post-Exercise Muscle Soreness: Athletes and gym users in Bangladesh use the Comfy EV-804 for rapid muscle recovery after intense training — reducing delayed onset muscle soreness (DOMS) and returning to training faster.
Carpal Tunnel Syndrome: Relieves wrist and hand nerve pain caused by repetitive keyboard and mobile phone use — an increasingly common problem in Bangladesh.
Post-Stroke Rehabilitation: SD-2 mode stimulates weakened or inactive muscles in stroke patients, supporting physiotherapy-led muscle re-education and functional recovery.
Fibromyalgia and Chronic Widespread Pain: Provides systemic pain management for patients with fibromyalgia, allowing greater daily function and reduced reliance on painkillers.
Office Workers and Desk Job Professionals: If you sit for 6–8 hours daily and experience back, neck, or shoulder pain, the Comfy EV-804 gives you professional-level physiotherapy at your desk — without missing work hours or paying for clinic visits.
Elderly Patients: Older adults with chronic joint pain, arthritis, and nerve pain who want to reduce or eliminate their dependence on painkillers. Safe, simple, and effective with no medication side effects.
Athletes and Fitness Enthusiasts: Shortens recovery time after intense workouts, reduces muscle inflammation, and prevents injury-related downtime. Used by professional athletes and gym users in Dhaka’s fitness community.
Post-Surgery and Post-Injury Patients: Supports physiotherapy rehabilitation programs at home between clinic appointments. Prescribed by physiotherapists for ACL recovery, disc surgery recovery, and fracture rehabilitation.
Physiotherapy Clinic Owners: The Comfy EV-804 is a reliable, clinically proven device suitable for professional physiotherapy practice. Affordable enough to equip multiple treatment stations.
Anyone Seeking Drug-Free Pain Management: If you want to reduce painkiller consumption and manage pain naturally, the Comfy TENS EV-804 is the scientifically validated, doctor-recommended solution.
Step 1: Clean and thoroughly dry the skin on the area where you feel pain. Remove any lotion, oil, or sweat for maximum pad adhesion.
Step 2: Peel the protective film from the electrode pads and attach them to the targeted pain area as shown in the instruction guide. For back pain, place pads on either side of the spine — never directly over the spine bone.
Step 3: Connect the lead wires from the pads to the corresponding channel ports on the Comfy EV-804 machine.
Step 4: Press the power button. The LCD will display the last used settings or default settings.
Step 5: Select your therapy mode. For beginners, start with Normal mode. For nerve pain, use SD-1. For arthritis, use Modulation.
Step 6: Slowly increase the intensity using the + button. You should feel a gentle tingling or tapping sensation — not pain. Never jump to maximum intensity immediately.
Step 7: Set your desired session duration. A standard session is 20 to 30 minutes. The countdown timer will track your session automatically.
Step 8: After the session ends, reduce intensity to zero using the – button, then turn off the device. Never remove the electrode pads while the device is still active.
Step 9: Gently peel the electrode pads from the skin. Clean the pads with a slightly damp cloth and store in the carrying case. For best results, use 2 to 3 sessions per day.
Important Safety Note: Do not use this device if you have a cardiac pacemaker, are pregnant, have active cancer in the treatment area, have epilepsy, or have broken or infected skin in the electrode pad placement area. Consult your doctor before use if you have any serious medical condition.
The Comfy TENS EV-804 physiotherapy machine price in Bangladesh is listed above on this product page. At everoxygenbd.com, we guarantee the best and most competitive price for the Comfy TENS EV-804 available anywhere in Bangladesh. Our price includes the complete original package — machine, battery, lead wires, 4 electrode pads, carrying case, and instruction manual — with a full 1-year manufacturer warranty.
Compared to other TENS machine prices in Bangladesh, the Comfy EV-804 offers an unmatched combination of Taiwan build quality, clinical 5-mode functionality, dual channel output, and memory features — all at a mid-range price that competes with inferior single-mode alternatives. If you are searching for the best physiotherapy machine price in Bangladesh, the Comfy EV-804 represents the highest value-for-money option in its category.
The current price of the Comfy TENS EV-804 in Bangladesh is shown on this product page at everoxygenbd.com. We offer the most competitive price with free home delivery in Dhaka and cash on delivery available nationwide.
Yes. The Comfy TENS EV-804 is one of the most recommended physiotherapy machines for lower back pain in Bangladesh. Clinical studies confirm that TENS therapy effectively blocks pain signals and increases endorphin production, providing both immediate and long-lasting back pain relief without medication.
Yes. The Comfy EV-804 is specifically designed for safe, effective home use. The device has printed instructions under the flip-top cover, an easy button interface, and a countdown safety timer. However, for serious medical conditions, always consult your doctor or physiotherapist first.
You can use the Comfy TENS EV-804 two to three times per day, with each session lasting 20 to 30 minutes. Allow at least 30 minutes of rest between sessions. For optimal results, use consistently every day for 2 to 4 weeks.
TENS therapy is a scientifically proven, non-invasive, drug-free pain management method used globally for decades. The Comfy EV-804 has no systemic side effects. The only precaution is to avoid using it on broken skin, near water, or on people with pacemakers, pregnancy, or epilepsy.
Taiwan-manufactured medical devices follow strict international clinical standards including ISO and CE certifications. Comfy Taiwan uses medical-grade electronic components and clinically accurate waveforms that ensure precise, consistent therapy. Budget China-made alternatives often use lower-grade components that deliver inconsistent electrical output and degrade quickly.
Yes, the 4 included electrode pads are reusable. With proper care — cleaning after each use and storing in the carrying case — they last for many sessions. When adhesion weakens, replacement Comfy TENS electrode pads are available at everoxygenbd.com.
Yes. The SD-1 and SD-2 modes of the Comfy EV-804 are specifically designed for nerve-related pain. By targeting the sciatic nerve pathway with precise waveform stimulation, the device reduces radiating nerve pain significantly. This is why physiotherapy clinics across Bangladesh use this machine for sciatica patients.
TENS (Transcutaneous Electrical Nerve Stimulation) targets sensory nerves to block pain signals — primarily used for pain relief. EMS (Electrical Muscle Stimulation) directly contracts muscle fibers — used for muscle strengthening and rehabilitation. The Comfy EV-804 is a dedicated TENS device optimized for pain management and relief.
Yes. Every Comfy TENS EV-804 sold through everoxygenbd.com comes with a 1-year manufacturer warranty. Manufacturing defects are covered with free repair or replacement. Contact our customer service team for warranty claims.
When comparing all TENS machines available in Bangladesh, the Comfy EV-804 consistently outperforms its competitors across every important category. Most budget TENS machines sold in Bangladesh offer only 2 or 3 therapy modes — the Comfy EV-804 provides 5 clinically distinct modes covering every pain condition from nerve pain to arthritis to muscle rehabilitation.
The dual channel design with 4 electrode pads sets it apart from single-channel devices that can only treat one area at a time. The intelligent memory function that saves your last settings is a premium feature typically found only in clinical-grade machines costing significantly more. The Taiwan manufacturing standard ensures consistent, accurate electrical output — something Chinese budget alternatives cannot guarantee.
For anyone searching for the best physiotherapy machine in Bangladesh, the best TENS machine for back pain in Bangladesh, or the most reliable home physiotherapy device — the Comfy TENS EV-804 from everoxygenbd.com is the definitive answer.
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