•Bluetooth-compatible 5.1 chip, low power consumption, better stability and compatibility •Charging compartment designed with digital display to show battery power •Semi-in-ear type does not provoke the ear canal and does not bring stethoscope effect and discomfort •Touch control with built-in capacitive sensing element, sensitive to light touch, efficient and convenient •Compatible with most Bluetooth-enabled smart devices Specification: •Transmission distance: 10m •Speaker unit: 13mm •Battery type: Polymer battery •Single play time: 6H •Charging time: 1H •Chip solution: JL 6973 •Bluetooth-compatible version: TWS 5.1 + EDR ultra-low power consumption •Bluetooth-compatible frequency band: 2.4GHZ •Headset battery capacity: built-in 30mAh •Charging case battery capacity. 300mAh with protection plate •Speaker type: titanium membrane speaker •Charging compartment size: 55*20*44mm Package included: •1 x Pair of Bluetooth-compatible Earphones •1 x Charging Case •1 x Charging Cable •1 x English and Chinese User Manual