Screen: 1.44-inch TFT color screen Recording format and sampling rate: WAV format (32Kbps-1536Kbps) Recording quality: WAV 512Kbps (default) Supports playing music in multiple formats Support: recording, monitoring, voice control, clock, timed recording, voice and music playback, , password, low battery saving, shutdown and other functions External input: 3.5pie headphone stereo jack, 3.5pie microphone cable, 3.5pie jack USB:2.0 FULL Speed Power supply mode: Rated voltage lithium battery (600MA): 3.4V-4.2V USB input rated voltage/power: 5V500MAH-5V1000MAH Storage: External TF card Weight: About 93g (bare metal) Size: 105mm x 37mm x 12mm Battery life: Approximately 60 hours of recording (512Kbps) and 50 hours of playback (with headphones plugged in) Colour:Black Material:Metal Package Contents: 1 * Voice Recorder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.