R1-A For Ring V4 Video Doorbell Dual USB Batteries Charging Hub, Battery Charger

1. Specifically designed for Ring V4 Video Doorbell batteries charging
3. Constant current and constant voltage protection, capable of charging two batteries simultaneously.
4. Input: Micro USB 5V
5. Output: 5V 0.8A
6. Dimensions: 6.1x6.1x2.2cm