Features: 1. One-button recording, with delete function, playing LED indicator. 2. ADPCM recording 192Kbit, optional voice-activated recording 50DB, automatic split recording, loop coverage recording. 3. Recording for 25 hours continuously, standby for 30 days, 8GB capacity (storage recording for 90 hours). 4. Support for MP3, WMA, WAV playback, support fast forward and backward playback. 5. With time stamp, the name of the recording file is named by time. 6. With magnet adsorption, with back clip, classic style. Specification: Storage: 8G Recording format: for MP3, WMA, WAV Recording quality: WAV 512Kbps (default) Recording bit rate: 192kbps-1536kbps Recording effective distance: up to 30m Recording frequency: 24Hz Video screen light off recording power: 12mA-20mA External input: Headphones 3.5-inch stereo jack LINE-IN cable 3.5-inch jack USB: PC Interface USB1.1/USB2.0 FULL Speed S/N (noise ratio): 90dB Power supply mode: rated voltage lithium battery 3.6V-4.2V, 100mAh capacity USB input rated voltage / power: 5V 100mA-5V 1A Storage: embedded flash or TF card Operating temperature: -40℃-60℃ Weight: 17.6g (bare metal) Size: about 5.5*2*1.2cm/ 2.17*0.79*0.47inch Battery life: Recording for 25 hours (512Kbps), Standby for 30 days, 8GB capacity (storage recording for 90 hours) Package List: 1*Recording Pen 1*Earphone 1*Data Line 1*Instruction Manual 1、One-button recording, with delete function, playing LED indicator. 2、ADPCM recording 192Kbit, optional voice-activated recording 50DB, automatic split recording, loop coverage recording. 3、Recording for 25 hours continuously, standby for 30 days, 8GB capacity (storage recording for 90 hours). 4、Support for MP3, WMA, WAV playback, support fast forward and backward playback. 5、With magnet adsorption, with back clip, classic style.