Headset type: Bluetooth, In-earFrequency response (Hz): 20-20000Headphones impedance (Ohm): 32Headphones sensitivity (dB): 107 +/- 3Driver size (mm): 13Interface: Bluetooth 5.4 + BR + EDR + BLE / Type-C (for charging)Material: Plastic, Rubber coatingColor: WhiteStand-by time (h): 22-26Talk time / music time (h): 6Charging time (h): 1-2Range (m): 10Chip: Bluetrum JL 7003Noise reduction: Yes, ANC(active noise cancelation) + ENC(Environmental Noise Cancellation, 4 microphones)Battery: Lithium-polymer, 45mAh earphone + 300mAh charging caseDimensions (mm): 16x26x31(earphone) / 26x61x48(charging case)