We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Pair of grey cordless knee massagers, wrap-around form, faux leather finish

IKEEPFIT KPF-Knee09 MAXwarm 4.0 Grey Pair Cordless Knee Massager

SKU CH-SJDW-797RT

Cordless heated knee brace delivers 360-degree graphene warmth up to 149°F with three vibration modes and a 5000 mAh battery lasting 15 sessions

  • ColorGrey(pair)
  • NameIKEEPFIT KPF-Knee09
  • TypeFoot Massager
  • Specifications20 L x 10.5 W x 0.8 H inches, One Size, Faux Leather, Grey(p
  • Power Consumption5000 milliampere_hour, Battery Powered
  • Power SourceBattery Powered
  • Cordless freedom with a 5000 mAh battery lasting up to 15 sessions per charge
  • 5 heat levels from 113 to 149 °F with graphene heating reaching temperature in 5 seconds
  • 3 vibration modes — gentle, soothing, intense — each switchable independently of heat
  • 16,800 mm² heating area giving 360 ° knee coverage, 150 % larger than the 11,200 mm² version
  • Auto shut-off after 30 minutes and NTC smart temperature control for safe daily use

Cordless Knee Massager Pair

The IKEEPFIT KPF-Knee09 MAXwarm 4.0 arrives as a grey pair of cordless knee massagers built for adults who want heat and vibration therapy without being tethered to an outlet. Each unit wraps the joint in a faux-leather sleeve that delivers 360-degree coverage across a 16,800 mm² heating area. The device suits anyone managing daily knee discomfort who values the freedom to move around the house or travel while receiving treatment.

Battery Powered Heat And Vibration

A 5000 mAh embedded battery powers both heat and vibration so no cables or external packs are required. The massager folds flat like clothing and weighs 31.74 ounces, making it simple to pack in a suitcase or gym bag. Five temperature settings range from 113 to 149°F and three vibration modes — gentle, soothing, intense — can be used together or independently. A 5 V, 2 A input recharges the unit between sessions.

Sustained Thermal Performance

Graphene heating elements reach target temperature in roughly 5 seconds and NTC smart control maintains the chosen level without overshoot. Overheat protection and a 30-minute auto-off timer keep the unit safe during extended wear. The 7 W power draw allows up to 15 typical sessions per charge, so the massager can support multiple days of regular use before needing a recharge.

Highlights

  • Cordless freedom with a 5000 mAh battery lasting up to 15 sessions per charge
  • 5 heat levels from 113 to 149 °F with graphene heating reaching temperature in 5 seconds
  • 3 vibration modes — gentle, soothing, intense — each switchable independently of heat
  • 16,800 mm² heating area giving 360 ° knee coverage, 150 % larger than the 11,200 mm² version
  • Auto shut-off after 30 minutes and NTC smart temperature control for safe daily use

Specifications

BrandIKEEPFIT
ColorGrey(pair)
NameIKEEPFIT KPF-Knee09
ModelKPF-Knee09, IKEEPFIT-K09-grey
TypeFoot Massager
Part NumberIKEEPFIT-K09-grey
Specifications20 L x 10.5 W x 0.8 H inches, One Size, Faux Leather, Grey(pair), KPF-Knee09, IKEEPFIT-K09-grey, 31.74 ounces, Battery Powered, true, not_water_resistant, foot_massager_machine, vibration, IKEEPFIT
Power Consumption5000 milliampere_hour, Battery Powered
Power SourceBattery Powered
Dimensions20'
Weight31.74 ounces
Contains Embedded BatteryBattery Powered, true, 9v, 1

Questions about this item

How long does the 5000mAh battery last between charges?

A single charge delivers up to 15 sessions of 30 minutes each, so you can use it for several days before recharging.

Does the graphene heating element get uncomfortably hot during a full 30-minute cycle?

The NTC smart controller keeps the surface between 45 and 65 °C with overheat protection, so it stays warm without becoming painful.

Is there any separate controller or cable I need to buy before I can use the massager?

Everything is built into the wrap — just charge the internal battery via the supplied USB lead and strap it on.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.