This unit is GT Power's take on the Tamiya Track Truck Multi Function Unit (MFU) - it's a very similar set up and offers similar functionality (noise, lights and vibration) with the added feature of bluetooth setup.  Like the Tamiya version, it incorporates an ESC so is a straight fit to most trucks as long as you already have your radio system and servos installed.

SPEC BELOW NOTE: The description below refers to the USA truck version.  This is the new European truck version on this listing.  So far a description hasn't been written for it, but it's basically the same as below but with different sounds.
 
If you're an R/C truck fanatic then this hugely capable system from G.T. Power is sure to be on your wish list if you want to add that final touch of realism. Featuring 24 sound effects including engine starting, idling, gear shifting, revving, stopping and oodles more there's also a full lighting system and a handful of special features, not least an adjustable vibration motor to properly simulate the effects of a powerful turbo charged diesel. In short this comprehensive sound and light system is just what you need to bring your truck to life and, best of all, it's bluetooth controlled and incorporates your vehicle's ESC, which means that only a basic 4-channel receiver is required to get it all up and running. Got a truck? You need this.
 
Key Features
- 24 sound effects: Alarm 1, Alarm 2, engine starter, idling, air dryer, revving, running without semi-trailer, running with semi-trailer, coupler attachment, coupler detachment, down-shifting, up-shifting, air discharging 1, air discharging 2, exhaust brake, brake, short honk, continuous honk, turn signal 1, turn signal 2, hazard lamp, back alarm, parking brake, engine stop.
- 9 electrical effects: Headlight, taillight, speed indicator, fog lamp, turn signals, reverse light, roof lamp, hazard lamp, auxiliary lamp.
- 5 special features: Engine stop / start switching, horn / support leg switching, light on/off switching, turn signal / hazard lamp switching, running / revving switching.
- Bluetooth control & configuration

What's in the Box
- 1x Main control box
- 1x Main board
- 1x Vibration motor
- 1x Speaker unit
- 1x Set of lighting units
- 1x Accessory set
- 1x Comprehensive instruction manual

Needed to Complete
- 1x 4-channel transmitter and receiver combo
- 1x Suitable truck drive battery
- 1x Bluetooth enabled smart phone

NOTES: You may need to use an adaptor to connect your battery - part ET0843.