GPS Bus stop automatic announcer

GPS bus stop automatic announcercan automatically announce the stop-name with turning warning, time warning and over speed warning. You can set up positioned advertisement. Announcer equipments can copy each other's information according to the content that the computer gives. Every announcer could store 8 pieces of information. Time announce advertisement. Warning advertisement of the bus is going out or returning. It can be connected with wireless LED display, and show the stop-name synchronously.Main technology parameter of GPS automatic announcer: 1) Power voltage: DC 8 - 40V 2) Maximum current: less than 500mAh 3) Outer-speaker obstruction: 4 ohms or 8 ohms 4) Sound channel: 2 5) Output power: 3W (12V) 6) Adjust voice: can be adjusted by through inner-speaker or outer- speaker, or Mac-phone 7) The bank of voice adjustment: band 32 8) The storing room of voice data: 4Mbyte (32Mbit) 9) Phonetic pattern: ADPCM 8K 11 10) Max. phonetic: 1,000sec 11) Max. stops: 99 stops 12) Max. voice information of button control: 6 pieces 13) Max. advertisements: 100 pieces 14) Max. routes: 8 15) Joint: RS-485 16) Display way: two tubes of 0.5" and LED display 17) Communication pattern with screen: 3 kinds and can be designed 18) Communication speed with screen: 300 - 115.2Kbps, and can be designed 19) Communication speed: 115.2Kbps 20) Appearance dimensions: 195 x 116 x 37mm 21) Weight: 1.2kg