Digital Voice Recorder 8GB Activated Record Playback with Mic and Speaker 1536KBPS High Recording Support Password Protection TFT Screen USB Charging for Lectures Meetings Class Interviews Model: S8 Size: 8.6x2.4x1.3cm Weight: 32g Material: Aluminium Alloy Shell Storage Card: 8G, 16G, 32G (Optional) Storage Time:  8G- 560hrs (32kbps), 140hrs (128kbps), 35hrs (512kbps), 17.5hrs (1024kbps), 11.5hrs (1536kbps) 16G- 1120hrs (32kbps), 280hrs (128kbps), 70hrs (512kbps), 35hrs (1024kbps), 23hrs (1536kbps) 32G- 2240hrs (32kbps), 560hrs (128kbps), 140hrs (512kbps), 70hrs (1024kbps), 46hrs (1536kbps) Number of recorded files: 999 audio files Recording quality: WAV:32K-1536Kbps (The default is 512 kbps) External input: 3.5Pie Stereo Jack Source of recording: Built-in MIC recording Power supply mode Lithium batteries: 3.3V-4.2V,230mAh Headphone output: （L) 9mW＋(R) 9mW (32Ohm) Built-in speaker: 8R/1W   20mm*14mm   800mW   Recording Distortion: < 10% (maximum volume) Storage method: Embedded Flash & Extended TF Display screen: 0.8-inch duplicated LCD Battery time: the recording (512K) lasts about 45 hours USB port: USB 2.0 high speed data transfer Package Size: 11.5x8.3x1.6cm Package Weight: 70g