TWS Bluetooth headset Package:1pcs/colorbox 100pcs/ctn 62.6*33*36.4cm MOQ:1000pcs Bluetooth version: 5.1 Chip: Jerry 6963a4 low power consumption Call / music time: 3H Charging time: 1 hour Standby time: 100 hours Battery capacity: 300 Ma charging compartment with protective earphone 25 mA Distance: 10 m Support protocol: AVRCP / A2DP / HFP 1 * charging line 1 * instruction manual Note: the product quotation meets the requirement of California 65 certification, but there is no certificate!