True wireless Bluetooth 5.0 earbuds binaural headset

T09 true wireless [standard version]: Dual microphone intelligent noise reduction 15+5 hours battery life Fingerprint touch T09 upgrade version: Master-slave switching dual master 15+5 hours battery life.                                      Intelligent noise reduction.                                          Talk time: about 5 hours.                                          Music time: about 5 hours.                                    Standby time: about 100 hours.                        Charging time: about 3 hours Bluetooth version: BLUETOOTH V5.0 Standby time: about 100 hours Charging time: about 3 hours Bluetooth version: BLUETOOTH V5.0 Support protocol: HSP / HFP / A2DP /AVRCP Transmission range: 10M/ Class2 Headphone body battery: 50mAh*2 lithium polymer battery Charging bay battery: 500mAh Charging voltage and current: DC 5V, 500mA Waterproof rating: IPX5