Micro Sd card digital music headphone
Features:
◆ As MP3 Micro SD card headphone  
◆ As FM radio                 
◆ As Multimedia computer headphone

Specifications:
* Support system: Windows98, win2000, win XP, win Vista
* USB plug: high-speed USB 2.0
* Support memory cards: MMC card, TF card;
* Support card capacity: 16GB
* Support music file formats: MP3\WMA
* support the audio sampling rate :8-48KHZ
* Battery: 3.7V Rechargeable lithium-ion battery
* Charging power: computer USB port DC5V
* operating time: about 10 hours;
* Frequency response: 20Hz-20KHz;
* SNR: 82db;