Firstsing TWS Portable Wireless Bluetooth 5.0 In-Ear Earphone 3400mAh Power Bank for Android IOS

Bluetooth 5.0+ER/BDR.
Chipset:Realtek 8763BFR
High-end aluminium +ABS material.
3600mA battery,Unique design.
Play/plause，decreased/Increase volume,Next/Last song.
Both earpones work in phone calls.
Battery earphone50mA, charging case3400mA.
Music time: 5-7hours,charger case:3times.
It is easy to store and carry , outdoor is not afraid of no electricity.
With a charging compartment for automatic battery life, noise reduction design, also can give the mobile phone emergency charging.
Compact and lightweight, easy to carry even in travel.
IPX6 Level Waterproof, Fearless rains cats and dogs and dripping sweat.