Features:
LCD screen display with backlight, clear and convenient to adjust the tuning frequency
With Touch key design, high fidelity stereo
Digital PLL, transmission is stable in different environments
Full frequency range
Memory for last frequency
Powered by rechargeable built-in lithium battery, on need iPhone’s power
Works with all 3.5mm output audio devices, such as iPod/iPhone/Samsung/HTC/Blackberry etc
Support handset and hands-free call
Specification:
Radio frequency: 87.5-108.0MHz
Response frequency: 20Hz-20KHz
Separating degree:≥60dB
Working voltage: 4.2V
Working current: 38mA±10mA
Charging voltage: 5V 500mA.
Working time: more than 4 hours
Charging time: about 2 hours
Signal Noise Ratio: ≥60dB
Audio distortion degree: <2%
Clutter wave and harmonic wave: <-35d
Color: Black
Transmitter size: approx. 59 x 30 x 11mm (LWH)
Included:
1 x FM Transmitter
1 x USB Cable
how is this different from any of the other ones you can get from Ebay for about $5?