Dial Pen 32GB 16G 8GB Intelligent Voice MP3 PlayerExternal Playing Function Telephone Microphone HD RadioProduct function introduction:● Adopt the moment profeional scheme ATJ3315D.● Profeional WAV format , one click .● LP.HQ.SHQ (long time , high-quality , etc.).● Exquisite appearance design, exquisite and unique appearance design, and comfortable feel.● The blue light display screen is used for more convenient operation.● Intelligent voice control can effectively save storage space and reduce blank and usele files.● Profeional WAV format , high-quality sound quality, bit rate up to 384kbps.● Support MP3 and WAV format playback.● Support telephone function.● Support voice control function.● Support the function of listening while .● Support multi language, simplified/ditional Chinese, English, Japanese, etc.● Drive free U disk function, mini 5pin universal interface, high-speed data nsmiion.● Low power automatic shutdown and saving function of , so that files will not be lost.● automatic gain function (AGC), function.● Built in large capacity memory allows you to easily record.● Built in microphone (capacitive) .● Built in high-quality loudspeaker.● Mobile hard disk storage function.● LINE IN audio direct function.● Exquisite appearance design, exquisite and unique appearance design, and comfortable feel.Product s: format: WAV format power: 0.8mA-12mA sampling rate: 8KHz/16KHz/48KHz bit rate: WAV (32/128/192/384Kbps)Music playing format: MP3, WAVHeadset connector: 3.5pie stereo Maximum output of earphone: (L) 9mW+(R) 9mW (32)USB interface: MICRO-MIC 5P/DC5V-300MAhStorage: embedded f memoryBuilt in speaker output: 800mWBuilt in speaker: 8R/0.5W diameter 26Built in MIC: omnidirectional MICDisplay screen: 1.0 inchDistortion: 90dBSignal to noise ratio: 0.06%Operating temperature: - 10 ℃~ 40 ℃Body weight: 32.5g (bare)Body size: 85mm × 36mm × 14mmPower supply mode: lithium battery/3.2-4.2VBattery composition: lithium ionBattery type: LiCoO2Battery capacity: 220MAhBattery weight (g): 4gWatt hour of each battery: 0.81whLithium content: 0.066gBattery size: 3.5mm * 14mm * 55mmBattery life: 18 hours of , 5 hours of playback (plued in headphones)Supported syst: for Windows XP&Vista/2K/ME/98 (drivers need to be installed)/Mac OS 10, etc