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IKEEPFIT
Item#: N82E16896242001

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Main image of IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 2 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 3 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 4 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 5 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 6 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 7 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 8 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Alt view image 9 of 9 - IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

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IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

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2026 Upgraded Heating – 16,800 mm² heating area (2× larger), 360° knee coverage, 5 temperature settings (113–149°F), and 3 vibration massage modes (gentle/soothing/intense) with independent on/off control.
Truly Cordless – 5000mAh Japanese battery lasts days per charge. Folds like clothing for easy packing. Use it anywhere — no wires, no bulk. FSA/HSA Eligible.
Universal Fit – Adjustable velcro straps fit all sizes; stays secure even while walking or running. Includes two free 8" extension straps + 28" shoulder strap. Soft, skin-friendly materials only.
Smart & Safe Battery – NTC temperature control ensures even, consistent heat. 2,000+ charge cycles tested. 2-year battery guarantee.
Thoughtful Gift – Comes in an elegant gift box. Ideal for elderly, runners, desk workers, and drivers. Perfect for Christmas, birthdays, Father's Day, or Mother's Day.
IKEEPFIT Promise – 2-year guarantee · Full pre-shipment inspection · 24/7 support · Easy manual · Extra straps on request.

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IKEEPFIT KPF-Knee09 Cordless Knee Massager

2026 Updated

5000mAh

150% Warmer

Easy Use

Ergonomical Fit

5-Level Heat

MAXwarm 4.0

Heating Effect

Multiple Scenarios

Reliable Service

General
Brand	IKEEPFIT
Color	Gray
Name	MAXwarm 4.0 Cordless Knee Massager
Model	MAXwarm 4.0

Model
Part Number	KPF-Knee09

General
Type	Belt Massager

Feature
Features	360° Knee Coverage (16,800 mm² heating area, 2x larger than competitors); 5 Heat Levels (113°F-149°F); 3 Vibration Massage Modes (Gentle, Soothing, Intense); Heats in 5 Seconds (Graphene + High-Carbon Crystal technology); 5000mAh Japanese Battery (up to 10 uses per charge, 2,000+ charge cycles); NTC Smart Temperature Control; Auto Shut-Off at 30 minutes; Overheat Protection; Adjustable Velcro Straps (fits all sizes); Foldable & Ultra-Thin Design (folds like clothing); Soft Faux Leather; FSA/HSA Eligible; Includes 2x 8-inch extension straps and 1x 28-inch shoulder strap

Specification
Specifications	Heat Range: 113°F-149°F; Heat Levels: 5; Vibration Modes: 3; Battery: 5000mAh Li-ion; Runtime: up to 10 uses per charge; Charge Time: ~4 hours; Max Circumference: 32 inches; Heating Area: 16,800 mm; Material: Faux Leather

Power
Power Source	Rechargeable 5000mAh Lithium-Ion Battery (included)

Dimensions & Weight
Dimensions	20 x 10.5 x 0.8 inches
Weight	0.5 lbs (8 oz)

Additional Information
First Listed on Newegg	July 16, 2026

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 1 year
Limited Warranty period (labor): 1 year
Read full details

Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by Newegg.com's 30-Day Return Policy.
Read full return policy for details.

Backordered Items

IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Learn more about the MAXwarm 4.0 Cordless Knee Massager

Customer Reviews of MAXwarm 4.0 Cordless Knee Massager

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16896242001

Backordered Items

IKEEPFIT Cordless Knee Massager with Heat Vibration for Pain Relief, MAXwarm 4.0[2026 Upgraded] - Electric Heated Knee Brace with 5 Heat Levels and 3 Massage Mode, Gifts for Men Women (Grey, Pair)

Learn more about the MAXwarm 4.0 Cordless Knee Massager

Customer Reviews of MAXwarm 4.0 Cordless Knee Massager

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info