Specification :

Smallest Water Proof Necklace MP3 Player

Since the device is so small in size, the media device inherently possess a simple user interface comprised of a couple of buttons for moving between tracks and for adjustment of the volume output. All in all, the size of the device is rather unique and furthermore appealing, yet we feel that the extreme simplicity is a bit of a turn off.
*Touch button
*Size:42 x 14 x 7mm,only half of ipod shuffle wide, Weight: About 18 grams (player body with battery)
*Power: Rechargeable battery
*Data transferring interface: USB 2.0 High Speed
*Storage media: on-board flash memory (128M /256M/512M/1G/2G/4G)
*Bit rates: MP3 format 8~320kbps WMA format 32~384kbps
*S/N ratio: 90dB
*Earphone O/P: 50mW
*Frequency response: 20Hz~20kHz