Smart Knee Massager with Vibration Air Pressure Infrared Heat for Pain Relief Electric Elbow Shoulder Massage

Is Batteries Included : Yes Electronic : Yes Brand Name : Hailicare Features: Specifications: Product Name: Vibration Knee Massager Model: Mz-Hn01 Product Dimensions: 245X145X140Mm Product Weight: 528G Product Colour: White+Black Product Material: Abs/Pc/Silicone/Sewn Fabric Red Light: Wavelength 615-650Nm, Wavelength 416Nm Massage Mode: 5-Level Vibration, 3-Level Temperature, 4 Modes Battery Capacity: 2000Mah (18650 Polymer Battery) Use Time: 8-10 Times (10 Minutes Per Time) Charging Time: Approximately 1.5 Hours Operating Voltage: 5V Charging Current: 2A Rated Voltage: 3.7V Rated Power: 10W   Charging Specification: Type-C Operating Current: 700Ma Storage Environment Temperature: -10°C To 50°C Operating Environment Temperature: 0°C To 40°C Charging Status: Red Light Flashes; Fully Charged, Green Light Is On. Do Not Use While Charging.