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Grey cordless knee massager pair with adjustable velcro straps and rechargeable battery

IKEEPFIT

IKEEPFIT KPF-Knee09 MAXwarm 4.0 Cordless Knee Massager Grey Pair

SKU CH-FD9Q-4PXHC MPN KPF-Knee09

Cordless heated knee brace pair with 360° coverage, five heat levels up to 149°F and three vibration modes powered by a 5000 mAh battery

  • ColorGray
  • NameMAXwarm 4.0 Cordless Knee Massager
  • TypeBelt Massager
  • Features360° Knee Coverage (16,800 mm² heating area, 2x larger than
  • SpecificationsHeat Range: 113°F-149°F; Heat Levels: 5; Vibration Modes: 3;
  • Power SourceRechargeable 5000mAh Lithium-Ion Battery (included)
  • Cordless freedom with a 5000 mAh battery lasting up to 10 uses per charge
  • 360° knee coverage from a 16,800 mm² heating area for full joint warmth
  • Five heat levels from 113 °F to 149 °F for personalized comfort
  • Three vibration modes — gentle, soothing, intense — with independent on/off control
  • Adjustable velcro straps plus two 8" extensions and a 28" shoulder strap for universal fit

Cordless knee massager with heat and vibration

The IKEEPFIT KPF-Knee09 is a rechargeable belt massager that wraps the knee with 360-degree coverage and a 16,800 mm² heating area. It offers five heat levels from 113°F to 149°F and three vibration modes ranging from gentle to intense. A 5000mAh lithium-ion battery powers up to ten sessions per charge and recharges in about four hours. The unit weighs 0.5 lbs and folds flat for transport.

Battery runtime and charging limits

Cordless operation depends on the 5000mAh battery, which delivers up to ten uses before a four-hour recharge is required. Heat and vibration draw power simultaneously, so intensive sessions will reduce the total count. The pack is rated for 2,000 charge cycles and includes NTC temperature control for consistent output. Users who need continuous all-day therapy without access to a charger should plan for downtime.

Maximum knee circumference of 32 inches

Adjustable velcro straps secure the brace on knees up to 32 inches in circumference. Two 8-inch extension straps and a 28-inch shoulder strap are included for larger fits or alternative wearing styles. Buyers whose measurement exceeds 32 inches even with the extensions will not achieve a secure, comfortable wrap. The faux leather and skin-friendly lining are designed for direct contact during movement.

Highlights

  • Cordless freedom with a 5000 mAh battery lasting up to 10 uses per charge
  • 360° knee coverage from a 16,800 mm² heating area for full joint warmth
  • Five heat levels from 113 °F to 149 °F for personalized comfort
  • Three vibration modes — gentle, soothing, intense — with independent on/off control
  • Adjustable velcro straps plus two 8" extensions and a 28" shoulder strap for universal fit

Specifications

BrandIKEEPFIT
ColorGray
NameMAXwarm 4.0 Cordless Knee Massager
ModelMAXwarm 4.0
TypeBelt Massager
Part NumberKPF-Knee09
Features360° 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
SpecificationsHeat 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 SourceRechargeable 5000mAh Lithium-Ion Battery (included)
Dimensions20 x 10.5 x 0.8 inches
Weight0.5 lbs (8 oz)
Shipping weight5.81 kg
Package size508 × 267 × 20 mm

Questions about this item

Should I choose the single unit or the pair of grey MAXwarm 4.0 massagers?

The listing is sold as a pair, so you receive two identical grey units — one for each knee — with matching 5000mAh batteries and the same 5 heat levels and 3 vibration modes.

What does the 16,800 mm² heating area mean when I wear it?

It covers the knee in a 360° wrap, delivering heat from 113°F to 149°F across a surface roughly twice the size of typical pads, so the warmth reaches the front, sides and back of the joint.

How does the rechargeable battery limit daily use?

The 5000mAh pack powers up to 10 sessions per charge and takes about 4 hours to refill, giving several days of typical use before you need to plug it in again.

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