Introducing our new Bluetooth V4.1 earphones with an operation range of up to 10 meters and support for HSP, HFP, and AVRCP protocols. These earphones offer a frequency response of 20Hz-20KHz and a sensitivity of 105±3dB, with an impedance of 32Ω. The earphones come with a 3.7V 280mAh rechargeable Li-polymer battery charging box, and each earphone has a 3.7V 40mAh rechargeable Li-polymer battery. With a working time of about 2 hours (depending on the volume), and a standby time of about 120 hours, the earphones can be charged with a Micro USB port. These earphones are compact and lightweight, measuring 2.3 * 2.3 * 1.8cm and weighing 4.6g. The package size is 9.1 * 9.1 * 5.1cm and the package weight is 110g.

Bluetooth Version: V4.1
Operation Range: Up to 10 meters (no obstacle)
Supports HSP, HFP, AVRCP protocol
Frequency Response: 20Hz-20KHz
Sensitivity: 105±3dB
Impedance: 32Ω
Charging Box: 3.7V 280mAh rechargeable Li-polymer battery
Battery capacity: 3.7V 40mAh rechargeable Li-polymer battery for single headphone
Working Time: about 2 hours (The Music Volume will affect the time)
Standby Time: about 120 hours
Charge Port: Micro USB
Headphone Size: 2.3 * 2.3 * 1.8cm / 0.90 * 0.90 * 0.70in
Headphone Weight: 4.6g / 0.15oz
Package Size: 9.1 * 9.1 * 5.1cm / 3.58 * 3.58 * 2.00in
Package Weight: 110g / 3.91oz

Package List:
1 * Headsets with Charging Box
1 * USB Cable
2 * Pairs of Earcap
1 * English User Manual

Bluetooth Mini Double Wireless Stereo Music Earbuds Compatible with Apple Products