Chip:JL7003D4

Bluetooth Version: V5.3

Earbuds Battery: 25mAh

Charging Case Battery: 400mAh

Play Time: about 4.5h(60% Vol.) 

Case Charging Time: about 2h

USB Port: Type-C

Charging Case Dimension: 55*48*24 mm

Buds Net Weight: 3g

Charging case Net Weight: 33g

Wireless Working Range: 10m+ (without obstacles)

Audio code: AAC SBC

Speaker Size: φ10mm

Speaker Frequency: 20hz~20khz

Sensitivity: 102±3dB

Impedance: 32Ω

Input Voltage / Current: 5V/320mA