1.Metal apperance, dust-proof decoration, uses sandblasting technology make earphones full of metal texture
2.Collar design, fashionable and simple collar can wear comfortable, release your ears
3.250H standby time, with 130mAh large capacity battery, meet you daily use
Bluetooth Chip:JL6936
Bluetooth Version:V5.0
Drive Unit:10mm
Input Voltage:DC 5V
Output Voltage:4.2V
Impedance:32Ω±15%
Frequency Response:20-10KHz
Music Time:About 7-8H(70% Volume)
Call Time:About 7-8H(90% Volume)