Sports Bluetooth earphones with semi in ear intelligent noise reduction and ultra long battery life, wireless Bluetooth earphone Color:White D20 and the cotton rope doesn't

and the cotton rope doesn't stretch

due to the addition of Mo and V metal elements

onion rings

and other inflatables

from 2013 to 2017 years

Sports Bluetooth earphones with semi in ear intelligent noise reduction and ultra long battery life, wireless Bluetooth earphone Color:White D20 and the cotton rope doesn'tBluetooth 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