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    EM638
  • Direct USB Type;
  • Rubber Coating Body (optional);
  • Capacity: 1GB-4GB;
  • Audio Format: MP3,WMA;
  • 132*32 Pixel(LED backlight)LCD Display;
  • Other Function: ID3 tag/Lyrics Display, Lock up, Battery Power Display, FM (Available).
   System Requirements
Hardware IBM PC or compatible PC, Notebook or Macintosh with USB port
Operation System Windows98/98SE/Me/2000/XP,Window vista ultimate(32位) and Linux2.4/Mac OS10.0 above
Driver installation Only required for Windows98/SE
    Function characteristics
USB Interface USB2.0 high speed
Capacity 1GB, 2GB,4GB(Optional)
Storage Device Removable Storage Device
Card type N/A
A-B Repeat Available
Recording Support Microphone Recording
EQ Mode Normal, Pop, Rock,Classical,Jazz,Bass
Supported Language 15 languages support(Optional)
Play Mode Normal, Repeat all, Repeat one, repeat Folder,Folder,Random,Intro
FM Radio Available
VBR Available
    Technical Specification
Read speed MLC:5.0~6.4MB/S ;SLC:8~9.0MB/S
Write speed MLC:2~2.5MB/S ;SLC:5~5.5MB/S
Audio format MP3,WMA
Bit Rate 8Kbps—320Kbps
Recording Length WAV:About 3 hours(88Kbps/22KHz)/128M,About 4 hours (64Kbps/16KHz)/128M, About 6 hours(44Kbps/11KHz)/128M,About 8 hours (32Kbps/8KHz)/128M
FM Frequency Range 87.5--108MHz(Only for MA588JB)
FM Scan Mode Manual/Automatic Search(Only for MA588JB)
Battery Life About 10-20 Hours
LCD Display 132*32 (single color)
SNR ≥90dB
Frequency Response Range 20Hz—20KHz(Only MP3/WMA)
FM transmitting mode Manual selection of transmitting channel
FM transmitting frequency range 88.1MHz—107.9MHz
Transmitting power(direct) 88.1MHZ -18 +/- 10 dBm
88.1MHZ -18 +/- 10 dBm
107.9MHZ -18 +/- 10 dBm
Transmitting Modulation deviation (VOL=18) 88.1MHZ 65 +/- 15 KHz
88.1MHZ 65 +/- 15 KHz
107.9MHZ 65 +/- 15 KHz
SNR(FM Transmitting) 88.1MHz—107.9MHz ≥40dB
Transmitting distance ≥3m
Audio detection Stop transmitting if no audio signal is detected within 60S
Operation Current(EQ=Normal) MP3/WMA play mode 40 +/- 20mA
FM Transmitting mode 90 +/- 20mA
   Physical Characteristics
Battery Type 1 * AAA battery (alkaline)
Storage Temperature -20℃ ~ +55℃
Ambient Temp* -10℃ ~ +55℃
Operation Relative Humidity* 20% ~ 90%(40℃))
Storage Relative Humidity* 20% ~ 93%(40℃)
Size(mm) L*W*H : 84*30*19(mm)
Weight(g) About 31g
Color black
Package Blister package, color box
EMI Compliance CE
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