Features:Professional Recording Device - Adopts professional digital noise reduction with 192Kbps to ensure high-quality and clearer sound experience.Wide Range of Use - Free to use this device as a music player, it can also choose loop playback mode. It is a perfect gift for students, professors, teachers, businessmen, writers and bloggers, anyone who loves to record.Powerful Voice Recorder - Built-in 170mAh rechargeable lithium battery with micro USB, convenient to charge and record up to 20 hours after full charge.Convenient to Use - Support to listen to the recording content with earbuds (included), or you can listen on the computer via USB, moreover, you can write with this pen.High Quality - Made of superior zinc alloy, noble, scratch-proof and durable, perfect for recording lectures, meetings, interviews, speeches, etc.Specification:Model: 022Size: 14 x 1.28 cmWeight: 30 gRecording Format: WAVMusic Format: MP3, WAV, WMAFrequency: 20-20 KHZRecording Time: About 384 hours (32GB)Battery: 170mAh lithium batteryWorking Time: 20 hoursCharging Time: About 1 hourMicrophone: Omnidirectional microphoneRecording Distance: 8-10 m/26.2-32.8 ftOperating Temperature: -10°- 40°Package Size: 18 x 9 x 3.3 cm/7 x 3.5 x 1.2 inchPackage Weight: 110 g/3.8 ozPacking List:1 x Recording Device (without TF card)1 x Earphone1 x USB Cable1 x 3.5mm Jack to USB Adapter