E7S Product Paramater:

● Call duration: about 4 hours

● Bluetooth version: 5.0

● Working distance: about 10M

● Music time: 3.5 hours

● Headphone battery capacity 450MAH

● Charging compartment battery capacity: 2200MAH

● Waterproof level: IPX5

● Music playback time: about 4 hours

● Standby time: about 80 hours

●Without Packaging Box

●NOTE:

--When using for the first time, please put the earphones into the earphone case to charge(use 5V/2A USB Cable)

--When using for the first time, please pair the connection

--When making calls, only one earbud works

--The sound is intermittent, the reasons are: ①The distance from the connected device is more than 10M. ②The partition wall. ③Nearby interfering signal connections.