Item Type: Pendant RecorderMaterial: Zinc AlloyRecording Format: WAV MP3Playback Format: MP3 WMA WAVBuilt In Lithium Polymer Battery: 120mAhPackage List1 x Pendant Recorder1 x Earphone1 x Charging Cable1 x Instruction Manual1ONE BUTTON RECORDING: Mini voice recording device supports one key recording, with wire control deletion function and playback LED light indication. Continuous recording for 35 hours, standby for 30 days. 2LOOP OVERLAY RECORDING: Mini pendant voice recorder automatically splits the recording and loops cover recording. PCM recording 1536Kbit, optional voice recording 50DB. 3INTELLIGENT VOICE CONTROL: Mini MP3 recorder intelligent voice recording, effectively save memory space and battery power. Professional sound noise reduction chip, restore true and clear sound. 4WITH TIME STAMP: Pendant recorder supports MP3, WMA, WAV playback, support fast forward and rewind playback. With time stamp, the recording file name is named after the time. 5ZINC ALLOY MATERIAL: Digital voice activated recorder is made of zinc alloy, sandblasted black, 5D glass, high concealment, beautiful style, hanging rope hole. It is not only a recorder, but also an accessory.