Brand: CENLUX - Model: U10 - Quantity: 1 - Color: Black - Material: ABS - Internal Storage: 4 GB - Recording Time: 72 hours - PC Interface: USB 2.0 - Battery: Built-in 800mAh Class-A lithium battery - Record format: ADPCM WAV - Built-in all-direction stereo condenser microphone - 3-Mode switch: Record / Play / MP3 player (Up / Middle / Down) - Can be continuously record within 8~10 hours (Fully charged) - Comes with a 2.5mm jack in-ear earphone - Recording quality: 128kbps - Packing list: - 1 x Recorder - 1 x Earphone (cable length: 125cm) - 1 x Strap - 1 x Chinese user manual