<ul><li>Bluetooth Version: Bluetooth5.0+EDR</li><li>Support Bluetooth Mode: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 Battery: 400mAh</li><li>Horn: 40mm/32Ω</li><li>Frequency performance: receiving sensitivity: -84dbm; the maximum transmitting power 6DBM</li><li>Transmission range: ≤10m</li><li>Play card playback: Support playing external TF card songs.</li><li>Specular light: Turn on the red and blue light flash, play the blue light flash after connecting, the charging red</li><li>light is full of electricity.</li><li>Headphones Charging: The rechargeable 3.7V/400mAh polymer A product lithium battery, with the protective board.</li><li>Charging Port: USB charging interface</li><li>Normal charging Time: About 2 Hours</li><li>Music Playback Time: About 5 to 6 Hours</li><li>Calling Time: ≤6 Hours</li><li>Standby Time: 120 Hours</li></ul>