1. The battery capacity of the battery compartment: 300mA2. Battery protection board IC brand: transistor battery protection board3. The battery capacity of the headset: 35mA4. There is a battery in one ear or a battery in both ears: both ears with battery5. How long can each use: 3 hours6. How many times can the battery compartment charge once: 4 times7. Bluetooth version: v5.0 + EDR8. Double ear canal transmission or single ear canal transmission: dual channel9. Whether built-in microphone: binaural double microphone10. Whether waterproof, if waterproof, what is the waterproof level: IPX511. Bluetooth range: 10M or 50M: 30 metersSingle size / weight:Size: 10 * 8 * 3CMWeight: 65 g
