What are the dimensions of the unit?

A little bigger than s cigarette pack.

is there a "continuous mode" (no forced shutdown after 10,15, or 30 minutes)?

If you change the time settings, you can have it running until it run out of charge. So, yes there is

asked if battery can be replaced you said no-how long does the lithium battery last then?

Mine is about 1-1/2 years old and only has 1/2 the power strength it used to.

My unit came with a white usb charger... has anyone else got a white charger too? could it be something wrong with my charger adapter?

I don't think they color-match the unit and the charger.

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iSTIM EV-804 TENS/EMS 2 Channel Rechargeable Combo Machine Unit - Muscle Stimulator + Back Pain Relief and Management- 7 modes/24 Programs/Backlit (Including Electrodes Pads)

iSTIM EV-804 TENS/EMS 2 Channel Rechargeable Combo Machine Unit - Muscle Stimulator + Back Pain Relief and Management- 7 modes/24 Programs/Backlit (Including Electrodes Pads)

Product ID: 72163018

Details

Brand
iSTIM
Item Weight
150 Grams
Material
Plastic
Power Source
Battery
Use for
Whole Body

⚡2-channel dual stimulation

🌀7 modes & 24 preset programs

🔋Rechargeable lithium-polymer battery

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4790284₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
iSTIM
Item Weight
150 Grams
Material
Plastic

Description

⚡ Recharge Your Recovery: Next-Level Pain Relief & Muscle Therapy in One Sleek Device

DRUG FREE PAIN RELIEF - Clinically trusted TENS and EMS technology offers natural, non-invasive pain management without medications.
DUAL CHANNEL POWERHOUSE - Simultaneously target multiple pain points or muscle groups with 2 independent channels for personalized relief.
CUSTOMIZABLE THERAPY MODES - Choose from 7 modes and 24 preset programs to tailor your pain management or muscle recovery experience.
FSA HSA ELIGIBLE PORTABLE - Rechargeable, lightweight, and approved for flexible spending accounts—pain relief that fits your busy lifestyle.
PREMIUM JAPANESE ELECTRODES - Experience superior conductivity and skin comfort with biocompatible SEKISUI gel pads designed for sensitive skin.

The iSTIM EV-804 is a professional-grade, rechargeable TENS/EMS combo unit featuring 2 independent channels, 7 therapy modes, and 24 preset programs. It uses advanced, biocompatible Japanese electrode pads for effective, drug-free pain relief and muscle stimulation. Approved for OTC use and FSA/HSA eligible, this compact device is designed for chronic and acute pain management, muscle relaxation, and strengthening, making it an essential tool for modern wellness and recovery.

Specifications

ASIN	B07D1YPTGF
Best Sellers Rank	#157,379 in Health & Household ( See Top 100 in Health & Household ) #400 in Muscle Stimulators & Accessories
Brand	iSTIM
Brand Name	iSTIM
Color	Black
Customer Reviews	4.4 out of 5 stars 1,083 Reviews
Is Product Cordless	Yes
Item Dimensions L x W x H	7"L x 6"W x 3"H
Item Weight	150 Grams
Manufacturer	Everyway4all
Manufacturer Part Number	EV-804
Massager Form	Massage Mat
Material	Plastic
Material Type	Plastic
Model Name	iStim EV-804
Model Number	EV-804
Other Special Features of the Product	Rechargeable
Power Source	Battery Powered
Product Benefits	Muscle Therapy
Product Grade	Home
Specific Uses For Product	Arthritis
Style Name	Modern
Target Use Body Part	Whole Body
Unit Count	1.0 Count
Use for	Whole Body
Water Resistance Level	Not Water Resistant

Reviews

K**L

10.10.2022

C**S

25.10.2025

J**H

1.11.2019

H**D

1.08.2025

R**7

28.03.2026

N**4

7.07.2025

D**K

12.06.2020

J**A

14.08.2025

H**A

1.10.2021

A**A

9.03.2026

A**A

14.04.2026

A**R

19.06.2025

J**N

11.07.2024

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