Item Type: Wireless Bluetooth Earbuds Material: Aluminum Alloy Earbuds Battery Capacity: Built in 2 x 60mAh Lithium Battery (included) Charging Compartment Battery Capacity: Built in 400mAh Lithium Battery (included) Bluetooth Version: V5.0 Signal Distance: 15M/16.4yd Charging Time: About 60 Minutes Talk Time: About 5 Hours Standby Time: About 150 Hours Frequency Range: 2020KHz Support Protocol: HSP, HFP, A2DP, AVRCP Package List 2 x Earbuds 1 x Charging Compartment 1 x Charging Cable 1 x Instruction Manual 1BLUETOOTH 5.0: Wireless earbuds support fast transmission and stable connection, new Bluetooth 5.0 chip, low power consumption, more stable, low latency gaming and calling experience. 2NOISE CANCELLATION: Wireless Bluetooth earbuds use intelligent noise cancellation, high definition calls, new microphone noise cancellation technology to clearly convey your words. 3EASY TO OPERATE: Take the earbuds out of the charging case to turn on automatically, put them back in the charging case to turn off and charge automatically. 4LONG BATTERY LIFE: Bluetooth earbuds use low power consumption technology to extend the power consumption time, say goodbye to tedious charging, do not worry about running out of power when you go out, the charging compartment provides charging many times. 5STEREO SOUND: Earbuds use a new generation of optimized large composite diaphragm moving coil, full frequency sound more powerful and pure, listen to the sound can be predicted in advance orientation