Specification:

Bluetooth version: V5.1

Earplug battery capacity: 50mAh

Charging box battery capacity: 1200mAh

Working hours: 220H

Standby time: 280H

Operation mode: touch

Waterproof rating: IPX7

Product color: silver

Certification: CE

Battery voltage: 3.7V

Input voltage: 5V

Transmission distance: ≥10M

Speaker: 20-20khz

Bluetooth operating frequency: 2.402-2.48Ghz

Features:

【Fast & Stable Connection】:Advanced Bluetooth 5.1 technology guarantees faster and more stable connection and transmission. Open the charging case then the true wireless earbuds will turn on and pair automatically. Care-free for pairing problem. 

【Clear & Loud Stereo Sound】: Bluetooth 5.1 wireless headphone with excellent Hi-Fi stereo sound gives you an auditory feast. With built-in microphone you can take calls or redial last call. IPX7 waterproof withstands sweaty exercise in the Gym. 

【Up to 220H Playtime】This Bluetooth earphone is equipped with built-in 50mAh battery which can last 10 hours after a single full charge. 1200mAh portable rechargeable case can recharge Bluetooth earbuds about 24 times that boasts outstanding up to 220H playtime. Moreover this charging case can serve as power bank for your phone or other devices in emergence.

【Smart LCD Digital Display】 In smart LCD digital screen you can check battery consumption display anytime. Charging case presents its battery from 1%-100%. There are separated left and right headphone power consumption indicator. 5 grids in total, each grid represents 20% power of earphone (Lights off when fully charged).

【Smart Touch Control】User friendly design and easy operation. By tapping the Bluetooth earphones to answer/reject the call, hang up the phone, music play/pause, previous/next track, volume up/down.