... Host - Bluetooth, wifi, camera optional - SDK,customize - ODM RoHS C 7 inch GPS with GSM/GPRS, RS232, USB Host ( USB OTG, AVIN ... levelsMicrophone internal Mono microphoneSpeaker internal Mono speaker – 1000mWAudio Jack 3.5mm Headphone JackKeys/Button Power Button, Reset SwitchLED Bicolor for Charged ... , FCC, ROHS)Our Company (Office, workshop and Burn-in Room) 7 inch GPS with GSM/GPRS RS232