Specifications:

1) Complies with Bluetooth 1.2 standard (Bluetooth)

2) Transmitted power: class 2

3) Wireless connection range: 10m

4) Operation frequency range: 2.402GHz - 80GHz

5) Sound output mode: double track 

6)Talking time: 4 hours

7) Standby time: 120 hours

8)Digital formats supported: MP3/WMA (MP3 player)

9) Signal-to-noise ratio: 87.2dB

10) External hard drive function: yes

11) Audio additional features: auto-power off

12) Earphones type: binaural MFR estimated

13) Battery life: 5 hours

14) Charging time: 3 hours

15) Battery tape/capacity: built-in lithium-ion polymer/3.7V, 150mAh

16) Maximum input power rating: 5VDC, 150mA

17) Voice output power: 55mW

18) Frequency: 20Hz - 20kHz

19) Earphone impedance: 16Ω x 2

20) Memory capacity: 64MB - 1GB

Inner packing:Blister card Standard English paper box with USB cable, CD and instruction manual Small gift box dimensions: 10 x 8.0 x 18cm

Outer packing: 50pcs/carton

Carton dimensions: 44 x 39 x 55cm

G.W.: 15.50kg