E7S Product Parameter:

● 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 playing time: about 4 hours

● Standby time: about 80 hours

● Without packing 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 earpiece works

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