KingPavonini 4-IN-1 TENS Unit Muscle Stimulator, DIY & TENS & EMS & MASS, Dual-Channel 40 Intensities TENS Machine, Muscle Stimulator for Pain Relief Therapy Sciatica Back Pain, 12 Pads (Model: B2501)
Original price was: $59.99.$37.99Current price is: $37.99.
Product description
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. KingPavonini 4-in-1 tens unit Merchant Video
Easy-to-Use & Portable TENS Unit
Ultra clear screen and buttons for more intuitive controlPractical belt clip for hands-free usage 
Dual Channel Relief
Support 2 or 4 pads simultaneously for effective reliefIndependent intensity control for two zones
KingPavonini Solutions
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Customer Reviews
4.5 out of 5 stars 52
4.8 out of 5 stars 5
4.4 out of 5 stars 187
4.2 out of 5 stars 747
4.0 out of 5 stars 51
Price
$37.99$37.99
$9.99$9.99
$23.99$23.99
$29.99$29.99
$39.99$39.99
Brand
KingPavonini
KingPavonini
KingPavonini
KingPavonini
KingPavonini
Target Area
Whole Body
Whole Body
Whole Body
Whole Body
Whole Body
Therapy Types
TENS/EMS/MASSAGE
/
TENS/EMS/MASSAGE
TENS/EMS/MASSAGE
TENS/EMS/MASSAGE
FSA/ HSA Eligible
✔
✘
✔
✔
✔
Color
Red
Red
Red
Blue
Blue
Product Dimensions : 4.33 x 2.76 x 6.5 inches; 14.08 ounces
Item model number : FM-B2501
Batteries : 1 Lithium Ion batteries required. (included)
Date First Available : September 28, 2025
Manufacturer : KingPavonini
ASIN : B0FSZSK7PD
Best Sellers Rank: #126,903 in Health & Household (See Top 100 in Health & Household) #312 in Muscle Stimulators & Accessories
Customer Reviews: 4.5 4.5 out of 5 stars (52) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
[4-in-1 Versatility for Drug-Free Pain Relief] KingPavonini TENS unit muscle stimulator blends TENS, EMS, Massage & DIY modes, offering a perfectly balanced professional and personalized therapy option in one device; drug-free, non-invasive relief for sciatica, back, neck, shoulders, legs, knees, and joints, helps speed muscle recovery, ease soreness, and promote full-body relaxation post-workout or busy days
[DIY Pro Customization + 24 Therapy Presets] Get personalized comfort with TENS machines for pain relief: 24 preset modes cover quick daily relief, while DIY mode lets you freely adjust 1–199Hz frequency for precise, tailored therapy that matches your comfort or your therapist’s recommendations, no more one-size-fits-all settings
[Dual Channel & 40 Intensities] Independent A/B channels on this electric muscle stimulator offer up to 40 intensity levels per channel, fit all tolerances, and support 2 or 4 pads simultaneously for fast, effective relief across multiple areas at once; memory function saves settings, no repeated adjustments after restarts
[12 Multi-Size Reusable Pads for Full-Body Use] Our TENS unit for back pain includes 12 electrode pads in 3 sizes (4 small 1×2″, 6 medium 2×3″, 2 large 2×4″) for precise placement anywhere; each latex-free pad has high-tack adhesive that stays put with no residue, reusable up to 50 times, washable, and long-lasting
[45-Hour Battery & 10-90 Min Timer for All-Day Relief] Powered by 320mAh battery, our EMS muscle stimulator delivers up to 45 hours of use—no more low-battery worries; included USB-C cable (no adapter) works with power banks, laptops for easy charging; 10–90 min smart timer for safer, controlled therapy sessions
[Portable Carrying Case] KingPavonini TENS therapy machine (Model: B2501) features a sleek, travel-ready carrying case with a handy clip-on design, lightweight and compact; perfect for home, office, gym, or travel, a practical and thoughtful idea for seniors, parents, friends, or anyone seeking convenient at-home pain relief and muscle recovery
8 reviews for KingPavonini 4-IN-1 TENS Unit Muscle Stimulator, DIY & TENS & EMS & MASS, Dual-Channel 40 Intensities TENS Machine, Muscle Stimulator for Pain Relief Therapy Sciatica Back Pain, 12 Pads (Model: B2501)
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Jared Smile –
Does its job at a fair rate!!
I’ve tried a few from Amazon over the years and believe me, the cheaper you go the cheaper you get!! As well as a point you’re paying more for this when it does the same as that.This one is easy to understand and become familiar with what buttons do what. The quality of the unit itself is solid and its frequencies are effective for easing muscle tension, messaging but I’ve spent little time with the electrifying stimulations.NOW,… the electro pads it comes with are mediocre in that they lose their grip after one use. But those will be replaced at some point so just get them with your order.I suggest this one as a great option!
Sara Bowser –
It works!
Worth every penny! I have hip and knee problems and it helps tremendously! I work as a server and when I use it before my shift it helps get me through the day. If I happen to forget my legs are hurting extremely bad and I’m struggling to stand at the the end of my shift.
Pamela Knapp –
Great product
I use this machine for my tennis elbow… even though my tennis elbow still hurts, I feel it’s getting better daily
Jacki Abraham –
Hubby loves it
My husband loves it, after months of PT, this is keeping him going!
FozZ –
2 channels aren’t separate
Can’t run different program on each channel
Francisco castañeda –
👍
Excelente producto
Josie –
TENS UNIT
Love it it gives me temporary back pain relief due to cervical stenosis
Eric baker –
Awesome
5 star game changer