... Product Description i9B 3G 16GB gsm cell phone ,quad band cell phone- Operating Frequency: Quad-band 850/900/1800/1900 GSM - Automatic switching between ... Shake Control System"shake control" ,you can shake the phone, and switching songs or other operation,very interesting. - ... : Caller Picture, Caller Video, Ring Tone - Function during Phone Call: Speaker, Mute, Call Hold, Sound Recording, Background ...