A wireless communication device includes an RF transceiver configured to up convert a base band signal to a transmitting RF signal, a configurable matrix power amplifier circuit configured to amplify the transmitting RF signal to produce an amplified RF signal, and an antenna configured to transmit a wireless signal in response to the amplified RF signal. The teeth having facial and lingual surfaces. Each bistable cell comprises at least two elongated members that are connected to each other at their ends. The housing includes a rear face, a front face and a peripheral frame with a light-refracting chamber formed therebetween. The LEDs along different lines provide light of different color, for example, red, green and amber.