Sports Bluetooth earphones with semi in ear intelligent noise reduction and ultra long battery life, wireless Bluetooth earphone Color:White D20 a zero-drop sole that keeps

a zero-drop sole that keeps feet flat and balanced

black and white colors

adding a touch of sophistication to any look

and other inflatables

Sports Bluetooth earphones with semi in ear intelligent noise reduction and ultra long battery life, wireless Bluetooth earphone Color:White D20 a zero-drop sole that keepsBluetooth solution: (Blue Flood 5656T3) V5. 3 Supported protocols: HFP, A2DP, AVRCP Earplug battery capacity 25mAh * 2 Charging case battery capacity: 180mAh Speaker: 13 millimeters in diameter Charging time: 1. 5 hours Talk time: 4 hours Play time: 4 hours Standby time 200h Speaker sensitivity: 93 3dB Speaker impedance: 16 Standard input voltage DC 5V Bluetooth operating frequency: 2. 402GHz~2. 480GHz Frequency response range: 20Hz~20000Hz Maximum