Main Features:

Call conversation through bluetooth can be recorded and stored in the built-in memory card.
Bluetooth Superior feature. The music mutes automatically when there is a call and will continues after hang up.
Reject call;
Last call redial;
Voice dial support;
Built-in MP3 player
Support T-FLAXH card for enlarging memory;
Support MP3 file play of TF card;
Flash USB connector for transmit file.

Specification (Bluetooth Part):

Bluetooth version: Bluetooth V2.0
Transmitted power: Class 2 (max 4d Bm)
Receive Sensitivity: -80d Bm
Battery: rechargeable 460mAh Li-ion battery
Power Supply: DC 5V
Continuous talking time: over 8 hours
Standby time: about 240 hours
Weight: 30g
Size: 13.5 x 12 x 2.3cm
Poeration range: Within 10 meters

Specification (MP3 Part):

Audio format support: MP3
External memory enlarge: TF Card (Max 8GB)
Play time: continue about 10 hours
USB Jack: USB1.1
Frequency response: 20Hz - 20KHz
Output power: 15mW x 2
Record sampling rate: 64Kbps/9KHz
Record format: WAV