HD recording, zero noise.Power off automatically saves the recording.HIFI MP3 music, fully charged 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.Specifications:Recording format: WAV.Recording time: 15-17 hours continuous recording.Standby time: 68 hours.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.Memory capacity:32GBColour:blackMaterial:Aluminum alloyPackage Contents:1 * recording pen1 * Headphone cable1 * data cableOnly the above package content, other products are not included.Note: Light shooting 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.