HD recording, zero noise.Power off automatically saves the recording. HIFI MP3 music, fully in 30 minutes, continuous recording for 38 hours. Silent recording, no light display, no vibration.Rapid charging, fast forward and backward playback. Time setting forensic rights.Applicable places: schoolbags, collars, drawers, inside the car, etc. The simple design makes this audio recorder easy and convenient to operate. Color: black Memory capacity:32G Body material: plastic Recording format: WAV. Recording mode: one-click recording, one-click saving, one-click playback/pause. Microphone: Built-in HD microphone. Sampling rate: 48KHZ. Number of digits: 192KBPS. Battery: Built-in environmentally friendly lithium battery. USB: mini USB. Package Contents: 1x 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.