Bluetooth chipset: JL 7003 5.3 ANC ENC 

Charging case chipset : JL7012 5.3

Earphone battery: 30mAh

Charging Case Battery: 380mAh

Speaker size 13mm

Signal-to-noise ratio 85db

Sensitivity 102±5db

Playing time 4-5h

Material ABS

Screen size: 1.47 inches