GPS multilingual tour audio commentary system for double decker bus

1.Support GPS auto commentary and manual commentary
2.Support wide range work voltage 10-30V DC
3.Support 16 channels digital audio play and background music play,sound quanlity same as CD
4.Built-in high capacity lithium battery backup power to prevent accidental Power off,affecting the device is working properly
5.Built-in two ways 15W digital amplifier can directly drive an external speaker
6.Support set station coordinates, trigger distance and drive direction on Google Earth,do not need Collect points
7.Support one Routes 2.4G wireless microphone and two wired microphone for live guiding,tour guider through the microphone for live guiding
8.Support 2 video AV input, support one way DVR automatically detection

1.Support to display remaining time of each channel 
2.Support to monitor the audio commentary
3.Professional adjustable iron bracket, easy for installation
4.7inch TFT screen,comforable display solution for operation
5.Standard and professional key pad, data update by USB and micro sd card

1.Built-in 2-way USB HOST Interface,can directly drive two devices
2.With a standard RJ45 interface and super five kinds of wire, very suitable for the custom cable
3.Full isolation signal path design, to avoid damage to a single sub-equipment, affecting the normal work of other sub-devices 
4.Fully enclosed waterproof design, can prevent external factors (rain, dust, man-made) damage to the equipment 
5.Built-in power and signal indicator light, convenient for maintenance personnel maintenance equipment, and troubleshoot the device 

1.Support 16 languages simultaneously
2.Structure using 15 ° bevel design, 1.5 inches wide viewing angle IPS screen, automatic brightness adjustment, offers visitors the best viewing angle effect 
3.Full waterproof design and stainless steel screw,Suitable for outdoor bus installation
4.Lossless data transmission technology, near-CD quality stereo music
5.Easy to install, little damage to the seat.(Only a 20mm hole and four 2.5-mm hole is enough)
6.Using high-quality headphones, plug number up to 50 million times
7.Changeable covers, simple shell replacement,easy to operate(only need screwdriver)