Product Description Material: metal + glass Dimensions: 10.2 x 1.1 x 2.3 cm Memory: 32GB Headphone jack: 3.5 mm Recording mode: continuous recording Support song format: MP3/WAV/FLAC/APE/OGG/WAV Memory card type: does not support expansion cards Transmission interface: USB 2.0 Recording distance: 10 meters Power supply mode: built-in lithium battery Color: , iron gray Quantity: 1 piece Package content: 1*recording pen (with battery) 1.One-key Recording & Voice Activated Recording:Turn voice recorder on, simply push up the recording switch to start recording, then push down to save the recording. With automatic voice detection function, Activates the recorder only when an audible sound is detected, conserving space and eliminating soundless passages. 2.High-definition display screen:The display screen has exquisite picture quality, smooth operation, very high-definition, compact mini body, you can put it in your pocket at any time without worrying about taking up space. 3.High-quality recording: Built-in dual stereo dynamic noise reduction microphones to capture 3072kpbs crystal clear audio. The recording quality can be set to MP3 (32/64/128/192)kpbs )/WAV (512/768/1024/1536/3072)kpbs, and the digital audio recording is played by an external speaker, and the sound is clear and loud. 4.Large Capacity Storage & Long Time Recording: The 32GB storage capacity can store up to 1200 hours of data(32kbps). Built-in lithium battery, which can record and play continuously up to 27 hours(1536kbps) after fully charging((about 2 hours) ). If it detects a power shortage, it will automatically save, so you dont have to worry about losing data. 5.Multi-function recorder & MP3 player:Various scenesmeetingsbusiness lecturesclass notessong exercisesvoice control recordingmonitor recordingTimer recording ,A-B repeat play function.MP3 player support MP3, WMA, OGG, APE, FLAC, WAV formats.