Sleek appearance design and comfortable touch Support multiple audio format, such as MP1, MP2, MP3,WAV No need USB driver Supports MP3, WMA, ASF, and WAV music formats.Long time voice recording. Playback Formats : mp3 Playback Formats : WAV Record Audio Format : WAV External Memory : No With Speakers : No Balanced Out : No Model Number : GX-R01 External Microphone : No Dimensions (WxHxD) : 1.85x0.7x0.24inch Voice Activated Recording : Yes Record bit rate : 192kbps Mp3 Player : Support Built-in microphone Music playing function Recording indicatio Battery low power indication Working temperature: 0-40ºC Record bit rate :192 kbps Built in battery: 100mah( 12hours battery life ) Memory: 8GB / 16GB Colour:black Material:Aluminum Alloy<br><br>Package Contents: 1 * Recording Device 1 * Data Cable 1 * Headphone Cable 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.