Bluetooth specification: V4.2 + EDR

Supported profiles: HFP, HSP, SPP, A2DP, AVRCP

Service distance: Approx. 10m

Frequency response: 20Hz - 20kHz

Battery: Internal lithium polymer ion battery, Charging case 450mAh / Earphone 40mAh x2

Charging time: Charging case approx. 1.5 hours / Earphone approx. 1.5 hours

Charging voltage: DC 5V (Micro USB charging)

Operating time: Bluetooth music play time approx. 4 hours

Accessories: Micro USB cable, Earpiece S/M/L, Charging case, Neck strap, Operation manual (English)

Drive impedance: 32 ohm

Colour: White

Dimensions: 92.5 x 35 x 35 mm (Case approx.)

Net weight (Case approx.): 40 g

Net weight (Earphone approx.): 5.2 g x 2.