Color Black + Silver Built-in Memory 8GB Model VM29 Material Aluminum alloy Quantity 1 Piece Shade Of Color Black Supports Card Type OthersNO Record Audio Format WAV Audio Formats MP3WMA Bitrates 32~384Kbps Built-in Speaker Yes Recording Time High quality recording: 47 hours; Standard recording: 70 hours Battery Type Li-ion battery Built-in Battery Capacity 300 mAh Plug Specifications OthersUSB 2.0 Power Supply DC 5V Headphones Included Yes With Clip Yes Other Features Display: 1.1" LCD screen (128 x 64); Support MP3 player; Interface: 1 x micro USB2.0 1 x 3.5mm earphone jack 1 x 3.5mm microphone jack Packing List 1 x Voice recorder 1 x USB cable (72cm) 1 x Earphone cable (75cm) 1 x Microphone cable(94cm) 1 x Call switch box 1 x Call cable (29cm) 1 x Audio cable (42cm) 1 x English user manual