SPECIFICATIONSApplication: LeGBrand Name: VIMYSHOWCertification: RoHS,CE,FCCChoice: yesElectronic: YesHigh-concerned chemical: noneIs Batteries Included: YesItem Type: Massage & RelaxationMaterial: ABS & TPRModel Number: ST1101Origin: Mainland ChinaVoltage: 50V AC An All-rounder Knee MassagerEnjoy a Comfortable Massage after a Long Day. This knee massager has 3 vibration modes, from low, and high to automated switching. Cordless and Lightweight: With a built-in battery, and a lightweight of 829.5 g, the VIMYSHOW massager is truly a cordless all-rounder. LED Touch Screen Control Panel is Easy to Operate and Intuitive. The enclosed detailed user manual with larger text and explanatory drawings makes the unit a charm to operate. A separate Quick Start Guide helps you start massaging in no time! Ergonomic Design and A Great Gift: this is a functional and affectionate gift for your loved ones - mums and dads, family and friends, for any occasion or celebration, or enjoy one for yourself. Specifications: Item Type: Intelligent Knee Massager Color: White Rated Voltage: 3.7V Input Current: Direct Current 5V=2A Battery Capacity: 3000mAh Charging Time: 3-4 hours Continuous working time: 1-2 hours Gross Weight829.5 g Package Size245*160*145mm Products Include: 1 * Knee Massager 1 * USB Cable 1 * User Manual 1 * Box