Feature: 1. VOICE ACTIVATED: AI intelligent recorder supports voice activated recording, which effectively saves storage space, filters invalid clips and reduces playback time consumption. 2. NOISE REDUCTION: Voice activated recorder uses DSP professional recording chip, HD noise reduction to ensure that it is the same as what you hear. 3. RECORDING PARAMETERS: Intelligent recorder supports ADPCM recording 192Kbit, optional voice activated recording 50DB, automatic split recording. 4. LONG STANDBY: Magnetic recorder continuous 500 hours recording, standby 365 days, automatic storage of power failure, loop overlay recording. 5. SUPPORT FORMATS: Noise reduction recorder support MP3, WMA, WAV playback, support fast forward and backward playback. Specification: Item Type: Voice Recorder Material: ABS Recording Mode: Power on Recording, Power off Saving Recording Format: WAV Playback Format: MP3, WMA, WAV Built in Polymer Lithium Battery: 3000mAh. Package List: 1 x Voice Recorder1 x Earphone1 x Charging Cable1 x Instruction Manual