Specification: Dimensions:92*22*8mm Weight: about 47g color:black/silver Memory:Built-in 8/16/32GB, Don't support the TF card Recording format: WAV/MP3 Bitrate:1536Kbps lossless sound quality NSR:80db Frequency:200Hz-10000KHz Microphone: large-scale high sensitivity mic Working time: around 15 hours with WAV 32Kbps Language: support multi-languages(Supports 17 kind of language) Music format: MP3,WAV,APE,FLAC Recording mode: Voice/ manual control Earphone:3.5mm stereo earphone Built-in battery:built-in lithium polymer battery Connect:USB2.0/OTG Working Temperature:0~40oC Package Includes 1 x Digital Voice Recorder 1 x USB Cable 1 x Earphone 1 x User manual(Please leave your email address to us, we will send the English user manual to you, Thanks,)