Play music / talk time: about 3-4 hoursStandby time: about 100 hoursBattery Type: Rechargeable Polymer Lithium BatteryFunction: fast charging, high-definition callspeaker impedance 32ohmsfrequency-2.4ghzbattery-65mah/95mahinput;dc5vmic sensitivity;42dbChip: CSR63120 top chip.HBQi7 TWS wireless independent Bluetooth headsetWireless Binaural Bluetooth HeadsetDisplay: Apple ISO system battery displayLink: You can link two Bluetooth devices at the same timeBluetooth version: 5.0Play music / talk time: about 3-4 hoursStandby time: about 100 hoursBattery Type: Rechargeable Polymer Lithium BatteryFunction: fast charging, high-definition callVoice: can switch between Chinese and English, linked to the state under the press 2 under the boot buttonChip: CSR chip