ITEM NAME:Wireless Charger Compatible for iWatch Watch 4 3 2 1, Magnetic Portable Keychain Description: WIRELESS CHARGING: The built in950 mAh lithium ion battery will charge the Series 1 Apple Watch 3 times and the Series 2 Apple Watch twice. PORTABLE: This is the perfect solution to Apple Watch users who are traveling. Rather than taking your long magnetic charger or oversized dock with you, simply bring your lightweight and portable Pantheon keychain charger. Hook it to your backpack or carry it in your bag or pocket. STYLISH: High quality design and finish but lightweight and easy to carry around. Specification: Product number: Apple watch charging treasure Input: DC-5V1A Output: 5W = DC-0.4A Output power: watch = 2W Built-in battery capacity: 950mA / polymer Wireless output standard: QI WPC 1.1.1, QI WPC 1.2 Wireless charging working frequency: 110KHZ-220KHZ Transmission distance: 2mm Charging efficiency: 73% Net weight: 73g Color: Black Core type: polymer lithium ion batteries Type of application: Apple only Shell material: ABS Size: about 6*6*3CM /2.36*2.36*1.18in Power capacity: 950MAH Package Includes: 1 Piece Charger 1 Piece USB charging cable SKU: ALU0036356668010139.PORTABLE: This is the perfect solution to Apple Watch users who are traveling. Wireless output standard: QI WPC 1.1.1, QI WPC 1.2. Wireless charging working frequency: 110KHZ-220KHZ. Product number: Apple watch charging treasure.