Country:China Model No:A01 FOB Price:10 ~ 20 / Piece ( Negotiable ) Get Latest Price Place of Origin:China Price for Minimum Order:10 per Piece Minimum Order Quantity:100 Piece Packaging Detail:1pc/ gift box Delivery Time:Order: 7 to 15 days, retail: 3 to 5 days Supplying Ability:50000 Piece per Month Payment Type:PayPal, Money Gram, Western Union, L/C, T/T Product Group :Noise Cancelling Headphones Specification: Bluetooth solution: BK3266 Bluetooth version: V5.0 Bluetooth protocol: AVRCP,HSP,HFP,A2DP Bluetooth Distance: 10M ANC frequency: 20~600Hz ANC noise cancellation: 25 �± 2db Operating frequency: 2.402~2.480GHz Battery specification: 350mAh Charging voltage: 5V/ 1A Charging time: about 2h Bluetooth duration: about 20h Bluetooth + noise cancellation duration: about 10h Noise cancellation duration: about 33h Accessory: charging cable, 3.5mm Aux cable Color: black