CPU: JeiLi6983D2

Bluelaeth v5.3 lype C port

Wire-fee design,

Battery:built-in 30mah*2pcs+200mah

Bluetooth range:8-10 meters without interference.

Play time:between 1 -1.5 hours

Charging time:headphones: 2-2.5 hours/Case: 2.5-3 hours

Color: 8 Colors

Package:gift box,user manual,charging cable.

size:Case:7 cm x 5.5 cm/Headphone: 5cm x 3 cm

with good quality of chips and Grade-A battery