Bluetooth 5.4, Maximum range Up to 10 m, Frequency range: 20–20,000 Hz, Impedance: 32 Ohm, Maximum power input: 8 mW, Sensitivity: 107 dB (1 KHz, -10 dBFs), Water resistance: IPX4, Music play time: 5.5 + 14 h, Charging time: 2 h, Fast charging time: 15 mins for 1 h, Battery capacity (Case/ Earbud): 350 mAh/ 40 mAh, Charging cable: USB-C cable, 200 mm, Compatible: Apple Siri, Google Assistant, Multi-Function touch, Natural sound, Dynamic bass