with just one key, easy to operate. 4  TF cards with different storage for optional - 4GB (72hrs Storage Time), 8GB (144hrs Storage Time), 16GB (288hrs Storage Time) and 32GB (576hrs Storage Time).
Voice Control/Line-in Function - Comes with voice control function, Turn it on and will auto recording when there have sound. Support line with other equipment such as telephone to recording. Adjust the volume, fast-forward and fast rewind, and A-B repeat operation functions you can operate.
Powerful Battery&Strong Compatibility - The voice recorder with built-in 400mAh rechargeable battery can record continuously for 13hours. Compatible with Win7/8/10 etc. 
Easy to Operate - One button for one steps, 1.2inch screen with backlight, convenient to recording and reading the font at night. You can delete the files on the recorder, and connect with the computer via USB cable to download and upload.
Available in a Variety of Scenarios - Ideal for your business meetings, negotiations, interviews, presentations, conferences, semester classes, presentations, group discussions, etc., accurately record all the details.

Specification:
Color: Black
Product Size: 10 x 3.5 x 1.2cm/4 x 1.4 x 0.5in
Product Weight: 40g/1.6oz
Storage Capacity:  
4GB: 72hrs Storage Time
8GB: 144hrs  Storage Time
16GB: 288hrs  Storage Time
32GB: 576hrs  Storage Time
Music Play Format: MP3, WAV 
Recording Format: Standard(SP) MP3
Recording Sampling Bit Rate: 192kbps
Frequency Response: 20HZ-20khz
SNR: ≧ 70 db
Support system: Win7/8/10 etc.
Battery: 3.7V 400MAH Lithium Battery
Recording Time: 13hrs
Support System: Win7/8/10
Package Size: 15.5 x 8 x 4cm/6.1 x 3.1 x 1.6in
Package Weight: 112g/3.9oz

Packing List:
1 x Voice Recorder
1 x Earphone
1 x USB Cable
1 x User Manual