Bluetooth solution:CSR8635 Bluetooth version: V5.0 Bluetooth protocol: AVRCP,HSP,HFP,A2DP Bluetooth Distance: 10M ANC frequency: 20~800Hz ANC noise cancellation: 20 �?�± 2db Operating frequency: 2.402~2.480GHz Battery specification: 500mAh Charging voltage: 5V/1A Charging time: about 3h Bluetooth duration: about 30h Bluetooth + noise cancellation duration: about 20h Noise cancellation duration: about 45h Accessory: charging cable, 3.5mm Aux cable Color: black, red
