1、Intelligent Noise Reduction Function: The product adopts non directional dual noise canceling microphones to ensure clear recordings and reduce the interference of ambient noise, providing a better recording experience. 2、Premium Speaker: Built in 8Ω 2W speaker with clear sound quality and good playback effect, no external device is needed to play back the recorded content. 3、Highly Efficient Recording: Whether recording in WAV or MP3 format, the recorder provides up to 1168 hours depending on the sound quality, which fully meets your daily use needs. 4、Large Capacity Storage: Built in 16GB large capacity storage space, can store long time sound recordings, to meet your long time, large file recording needs. 5、Zinc Alloy Material: The recorder shell is made of premium zinc alloy material, which is sturdy and durable, with good resistance to pressure and impact, suitable for use in different environments. Item Type: Digital Voice Recorder Material: Zinc Alloy Storage: 16GB Display Screen: Dot Matrix Microphone: Non Directional Dual Noise Canceling Microphone Headset: 16+16Ω 0.2mW Speaker: 8Ω 2W Recording WAV Time: 1536KBPS: 24 Hours 1024KBPS: 36 Hours 768KBPS: 48 Hours 512KBPS: 70 Hours Recording MP3 Time: 32KBPS: 1168 Hours 64 KBPS: 584 Hours 128KBPS: 296 Hours Battery Type: Built in 360mAh Lithium Ion Battery (included) 1 x Voice Recorder 1 x Headphones 1 x Data Cable 1 x Instruction Manual