Color option: black white gold, rose gold

Chipset power consumption: 20mA

Bluetooth version: Bluetooth 5.0 (automatic pairing)

Bluetooth range 5-8 meters

Earbuds battery capacity: 40mA (501012)

Charging case battery capacity: 400mA (902030) (with protection board)

Playing time: 2 hours

Standby time: 30 hours

Charging time; 1 hour

RF Frequency range: 2.402GHz~2.480GHz

Size: 8mm

Spe material: copper ring

Impedance: 16 ohms

Sensitivity: 99.98dB+- 5dB

Signal to Noise Ratio (S/N): 90dB

Frequency Range: 20Hz-20kHz