bluetooth headset A997 Pro

FEATURES: Active noise cancellation Folding & matte Bluetooth headset Bluetooth & AUX support One-button switching for ANC Bluetooth version: 5.3 (Jieli chip) Battery capacity: 300mAh Play time under Bluetooth mode: 24h Play time under ANC mode: 17h Talk time: 24h Charging time: 2.5h Horn diameter: 40mm Charging interface: Type-C Size: 20*18.5*8.2 cm | PARAMETERS: Bluetooth scheme: (version: 5.3, chip: Jieli 7006) Supported protocols: a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\ gatt\rfcomm\sdp\l2cap profile Channel system: dual channel Battery capacity: 300mAh Play time under Bluetooth mode: 24h Play time under ANC mode: 17h Talk time: 24h Charging time: 2.5h Horn diameter: 40mm Horn impedance: 32Ω Horn sensitivity 110±3dB Active noise cancellation: 22±3dB Best transmission distance: ＜1m Maximum transmission distance: 10m Wearing method: head-mounted User manual: Chinese and English Accessories: USB charging cable, user manual