Features: brand new and high quality Easy to Operate: Simply attach the charger on the watch and enjoy effortless user experience. Fast Charging: ultra-fast transfer rate.high use frequency, soft line, abrasion- resistance, bend-resistance with long durability. The USB magnetic docking holder also enables you to transfer your activities data between your smart-watch and computer. Easy to Carry: for Ideal for office, gym locker, or can be stored in your sports bag. Safe and Practical: Prevent your smart-watch from being damaged by overcurrent when connected to USB power source. Specifications: Material:ABS Color:Black/Gray Battery type: polymer lithium ion battery Conversion rate: 62 (%) Charging power: 5W Capacity: 1400mah General purpose: 38mm 40mm 42mm 44mm Package Includes: 1x Wireless Charger note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.