... TTS + Phonebook + Car MP3 + Earpiece + FM + 3.5" TFT monitor + Wireless Camera• Features:1, Bluetooth 2.0+EDR ... read in English.( TTS: Text To Speech)5, Voice dial and last number redial6, independent Wireless ... the trouble of dismantle and reequip.13, With 3.5" TFT monitor and back up wireless camera . • ... ,Frequency: 2.4GHz 4,Battery capacity: 400mAh 5,Standby time: 120 hours 6,Earphone battery capacity ...