Reserved evidence Easy achieve Magnetic adsorption, quietly recording During the recording process, there is no sound, no light, magnetic adsorption function, you can put it where you need to place it. Type:Micro-type voicer recorder Recording format: WAV Sampling rate: 16KHz Number of digits: 32kbps - 384kbps Recording method: one-click recording Microphone: built-in large diameter microphone Music format: WAV, WMA, MP3 Battery: Polymer Safety Lithium Battery Specifications: about 65x32x17mm Weight: about 60g Function description: Multi-function voice recorder Easy to use HD recording Magnetic adsorption Long time recording One-click recording Sound Activated Recording Built-in cache No sound/No light Long-distance noise reduction Mobile phone OTG Save files automatically when power is lost. Note:the color of the accessories of this product is random, and the designation is not accepted. Colour:Black Material:ABS Package Contents: 1set * 8GB 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.