Digital Voice Recorder Pen Sound Audio Activated Dictaphone Recording Device Professional Music Player with USB Cable Earplug for Lecture Class Meeting Interview with 32G memory card Features: Professional Recording Device - Adopting professional digital noise reduction with 192Kbps for ensuring high-quality and more clear audio experience. Widely Used - Free to use this device as music player, it also can select the loop playing mode. It& 39;s a prefect gift for students, professor, teacher, businessman, writer and blogger, anyone who loves to record Powerful Voice Recorder - Built-in 170mAh rechargeable Lithium battery with micro USB, convenient to recharge and record up to 20h after fully charged. And with 32GB memory card can store 384hrs voice file. Convenient to Use - Support to listen to the recording content with earplug (including), or you can listen on the computer via USB, furthermore, you can write by this pen. High-quality - Made of superior zinc alloy, noble, scratch-proof and durable, perfect for recording lectures, meetings, interviews, speeches etc. Specification: Model: 022 Size: 14 x 1.28cm Weight: 30g Record Format: WAV Music format: MP3,WAV,WMA Frequency: 20-20 KHZ Recording Time: About 384hrs (32GB) Battery: 170mAh Lithium Battery Working Time: 20hrs Charging Time: About 1 hour Microphone: Omni-directional Microphone Recording Distance: 8-10m/26.2-32.8ft Operating temperature: -10- 40 Package Size: 18 x 9 x 3.3cm/7 x 3.5 x 1.2in Package Weight: 110g/3.8oz Packing List: 1 x Recording Device(With 32G TF card) 1 x Earphone 1 x USB Cable 1 x 3.5mm jack - USB Adapter