1) Built-in: MP3, Bluetooth function
2) Compatible format: MP3, WMA
3) Bluetooth profile supported: Headset and hands free profiles
4) Range of frequency:2.4ghz spectrum
5) Nominal charging time: Within 2 hours
6) Talk time: Up to 5 hours
7) Standby time: Up to 150 hours
8) Range: Up to 10 meters
9) Weight: 49g

Packing:
Gift box Size: 200*120*60mm
Weight: 0.4kg 
QTY/CTN: 48pcs
Weight: 15.5kg (N.W.) / 16.5 (G.W.)