Specification: Item Type: Keychain Voice Recorder Material: Zinc Alloy Recording Format: WAV Music Format: MP3, WAV, WMA Recording Compression Ratio: 192Kbps Sampling Rate: 48KHZ Frequency: 2020KHZ Microphone: Omnidirectional Battery Type: Built in 80mAh Lithium Ion Battery Package List:1 x Keychain Voice Recorder 1 x Adapter Cable1 x Headphones1 x Instruction Manual About this item COMPACT AND CONVENIENT: Keychain voice recorder is exquisitely crafted, compact in size, with a delicate texture and a comfortable touch. EASY TO USE: Keychain voice recording device is easy to operate, one button to start, toggle the switch to start one button recording. ADVANCED CHIP: Keychain digital voice recorder has a powerful internal chip, stable recording in complex environments, the use of excellent results. NOISE REDUCTION: Mini keychain voice recorder has a silent noise reduction technology, greatly reducing the noise, even in noisy environments can also record clearly. DURABLE MATERIAL: Keychain sound recorder is made of zinc alloy, hard and reliable texture, wear resistant and rust free, long service life. COMPACT AND CONVENIENT: Keychain voice recorder is exquisitely crafted, compact in size, with a delicate texture and a comfortable touch. EASY TO USE: Keychain voice recording device is easy to operate, one button to start, toggle the switch to start one button recording. ADVANCED CHIP: Keychain digital voice recorder has a powerful internal chip, stable recording in complex environments, the use of excellent results. NOISE REDUCTION: Mini keychain voice recorder has a silent noise reduction technology, greatly reducing the noise, even in noisy environments can also record clearly. DURABLE MATERIAL: Keychain sound recorder is made of zinc alloy, hard and reliable texture, wear resistant and rust free, long service life.