•Compact and lightweight, easy to carry•Built-in 1800mah battery, professional wireless charger for your smartwatch•Easy to use, charge your smartwatch conveniently•Made of durable ABS+PC material, with a metal ring buckle•Charging speed is fast, about 2.5-3h, and waiting time is shortSpecification:•Battery capacity: 1800mah•Input current: 5V/1A(max)•Output current: 5V/1.5 - 2.5W(max)•Charging time: about 2.5-3h•Material: ABS+PC•Product size: 70*41*17mm•Product net weight: 83gCompatible with:•Apple Watch Series 2 42mm•Apple Watch Series 2 38mm•Apple Watch Series 3 38mm•Apple Watch Series 3 42mm•Apple Watch Series 4 40mm•Apple Watch Series 4 44mm•Apple Watch Series 5 40mm•Apple Watch Series 5 44mm•Apple Watch Series 6 40mm•Apple Watch Series 6 44mm•Apple Watch Series 7 41mm•Apple Watch Series 7 45mm•Apple Watch Ultra 49mm•Apple Watch Series 8 41mm•Apple Watch Series 8 45mm•Apple Watch Series 9 45mm•Apple Watch Series 9 41mm•Apple Watch Ultra 2 49mmPackage included:•1 x Watch Charger with Ring Buckle•1 x English and Chinese User Manual•Not included other items