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