ER2244X Highlights High-fidelity audio transmission Stylish miniature design Back-lit LCD display Supports hands-free conversation through the car speaker system Features transmitting frequency storage when powered off Comes with a remote control for easy operation Conveniently charges your iPod， iPhone and other Apple device General Specs Brand & Model F25 Frequency Response 20Hz-16KHz Separation 40 dB S/N Ratio ≥ 45 dB Package Details Weight: 96.30 g Size: 17.5*10.5*2.5 cm