Technical details Materials Fabric Neoprene Germanium Number of vibration settings: 3 Types of thermotherapy Cold Warm Contrasting Proper Use: Knee Product size: Universal Time of therapy procedure Heat: 12 minutes Cold: 18 minutes Contrast: 16 minutes Ease of use: Yes Temperature control: Yes Strap material: Neoprene Adjustable clasp: Yes Product color: Black Power Power supply type: Battery Battery type: Lithium-ion (Li-Ion) Removable battery: Yes Working time: 90 min Package contents Soft travel case: Yes Battery included: Yes Cables: USB Type-C Adaptor: Yes Safety warning Warnings Use according to the instructions in the instruction manual. Keep out of reach of children. Do not use on damaged skin or wounds.