Feature:1. Professional Recording Device - Adopting professional digital noise reduction with 192Kbps for ensuring high-quality and more clear audio experience.2. Widely Used - Free to use this device as music player, it also can select the loop playing mode. It\u0027s a prefect gift for students, professor, teacher, businessman, writer and blogger, anyone who loves to record!3. Powerful Voice Recorder - Built-in 170mAh rechargeable Lithium battery with USB, convenient to recharge and record up to 20h after fully charged.4. 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.5. High-quality - Made of superior zinc alloy, noble, scratch-proof and durable, perfect for recording lectures, meetings, interviews, speeches etc.Specification: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'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. 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: 022Size: 14 x 1.28cmWeight: 30gRecord Format: WAVMusic format: MP3,WAV,WMAFrequency: 20-20 KHZRecording Time: About 384hrs (32GB)Battery: 170mAh Lithium BatteryWorking Time: 20hrsCharging Time: About 1 hourMicrophone: Omni-directional MicrophoneRecording Distance: 8-10m/26.2-32.8ftOperating temperature: -10°- 40°Package Size: 18 x 9 x 3.3cm/7 x 3.5 x 1.2inPackage Weight: 110g/3.8ozPacking List:1 x Recording Device (Without TF card)1 x Earphone1 x USB Cable1 x 3.5mm jack - USB AdapterPackage List:1 x Recording Device (Without TF card)1 x Earphone1 x USB Cable1 x 3.5mm jack - USB Adapter