Features:

1) Complies with Bluetooth 1.2 standard (Bluetooth)

2) Supports handset and hands free profile

3) Transmitted power: class 2

4) Wireless connection range: 10m

5) Operation frequency range: 2.402GHz to 2.480GHz

6) Talking time: four hours, readiness time: 120 hours

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

8) Signal-to-noise ratio: 87.2dB

9) External hard drive function: yes

10) Audio additional features: auto-power off

11) Earphones type: binaural

12) Mfr estimated battery life: five hours continuous

13) Charging time: three hours continuously

14) Battery tape/capacity: built-in Lithium-ion polymer/3.7V, 150mA

15) Maximum input power rating: 5V DC, 150mA

16) Voice output power: 55mW

17) Voice output frequency: 20Hz to 20KHz

18) Earphone impendence: 16 x 2

19) Memory: 128MB to 1GB