1,1080P ultra‑definition video recording with large wide‑angle lens, wide field of view, increasing the visual range. 2,Novel pendant design, users can carry more conveniently and record easily, suitable for conferences, lectures and other scenes. 3,Independent one-key start of recording and recording, convenient operation of video and audio synchronization. 4,When the system detects low battery, it will automatically save the file and then shut down to ensure recording. 5,The recording device supports OTG to connect for Android phones to play video recordings, which can be viewed at any time. 1 x Recording Pen1 x Data Line1 x Manual Item Type: Small Camera RecorderMaterial: Zinc AlloyModel: V2Recording Format: WAV/MP3/WMAFrequency Response: 20Hz-20kHZSignal to Noise Ratio: 90dBRecording Bit Rate: 32K bps-384K bpsBattery Type: Lithium BatteryBattery Capacity: 400mAh (Built-In) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.