S2 waterproof ear wireless Bluetooth headset, TWS waterproof binaural stereo, Bluetooth metal wire drawing magnetic charging

Chip: British CSR chip 64110
Transmission distance: 10 meters
Battery capacity: 850MA
Standby time: 100 days
Talk time: 50H
Charging input: 5V/1MAH
Output: 5V
Frequency: 2.402G-2.480G
Voltage: 3.4V--4.2V
Headphone battery capacity: 45MA