1. Charging voltage: dc 5V.
2. Charging current: 120mA.
3. Static current: less than or equal to 30uA.
4. Bluetooth distance: 10M.
5. Bluetooth version: built-in battery in V3.0.
About Delivery:Assuring 20-25 days delivery per our MOQ,for your urgent order,delivery within 18-20 days
About Payment:1. For Samples: PayPal,Western Union,TT