1: OTG directly connected to the mobile phone to download, connect to the OTG adapter, you can play and manage the recording files on the mobile phone2: Automatically save when power off. When the system detects that the power is insufficient, the recorder will automatically save the file in advance and then automatically shut down to ensure that the recorded data is not lost.3: 18h uninterrupted recording, 30 days long standby, built-in high-energy polymer lithium battery and a new generation of power The intelligent energy-saving system is small in size, but it can meet your recording needs4: Large-capacity U-disk function, large-capacity U-disk storage function, built-in 8G large memory, no need to worry about recording storage space5: Built-in time chip, intelligent time stamp, built-in time chip, with automatic time synchronization function, can be used as a time basis, easy to browse and find filesRecording method: record when power on, save when power offBattery: Environmentally friendly polymer lithium batteryCharging time: about 1 hourRecording time: about 18 hoursPlaying time: about 12 hoursRecording format: WAVPlayback format: MP3/WMA/WAV8GB can save 96 hoursSampling rate: 48KHZRecording bit rate: 192KBPSProduct size: 29x29x7.6mmWeight about: 9.7gColour:BlackMaterial:Aluminum AlloyPackage Contents:1 * Recorder1 * Data cable1 * HeadsetOnly 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.