Configure Bluetooth version: 5.4 Model:A8Pro (ANC+ENC) Main chip: 7012D8+7003D8+AI Chip master-slave switching: Ai dual engine (dual master ears, no master-slave) Charging case function: buzzer prompt sound + lanyard Function: Swipe up and down volume +-single ear anti-loss alarm Pressure: Pressure In-ear detection: somatosensory Housing: Metal hinges Speaker: F13 composite titanium mold Headphone battery: 35mAh battery Charging case battery: 50mAh Wireless charging: Not supported Headset battery life: 4.5 hours (without noise cancellation) Comprehensive battery life of the charging case: 36 hours Standby time: 6 months+ on full charge ANC Active Noise Cancellation: Noise Reduction Decibel: 32db or more UI and power screen customization: Yes Intelligent switching between charging case and earphones: Yes Action : or answer a call twice: Next song three times: Previous song and hold to switch between noise cancellation and transparency mode Colour:A:Black Material:Plastic Package Contents: 1 pair * headphones 1 * data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.