he FS-GR3E receiver is only 6.5g in weight and 37.6*22.3*13mm in size, and suit for Flyfky GT3B GT2 GT3C CT6B , Great for RC cars/Boats.

Features:
Reliable, interference-free 2.4GHz AFHDS signal operation.
Ultra lightweight design.
Easy to bind and very fast link-up.
AFHDS 3CH Receiver.
Suit for GT3B GT2 GT3C .
Quick and extremely stable in performance.

Specifications:
Channels: 3 Channels
Model type: car/boat
RF receiver sensitivity: -105dbm
Modulation: GFSK
System type: AFHDS
Sensitivity: 1024
Failsafe: yes (channel 2)
Bind port: yes (channel 3)
Power port: yes (VCC)
Power: 4.5-6.5V DC (1.5V * 4)
Weight: 6.5g
length: 26mm
Size: 37.6*22.3*13mm
Color: black

Package information:
Package size: 12 * 5 * 1cm / 4.7 * 2 * 0.4in
Package weight: 20g / 0.6oz
bags

Package list:
2 * Flysky FS-GR3E
2 * Antenna tube
2 * Bind plug