Easy to bind and very fast link-up, quick and extremely stable in performance.This is an accessory product for RC Car & Boat. Ultra-small size and ultra-light weight, effectively save space and reduce item's weight-bearing Buillt-in gyroscope features automatic recovery of unexpected offsets, suitable for AFHDS2A system transmitter Compatible with: For GT5 GT2E GT2G -i4X -i6 -i6X -i6S -TH9A -TM10, not compatible: -GT2 -GT2B -GT3B -GT3C and other transmitter whose communication protocol is AFHDS, Only compatible with the transmitter with the communication protocol AFHDS 2A. Note:If you encounter the problem of not being to link for the first time, please choose to re-link. (Steps: Insert the attached code line into the receiver BIND interface and power on the receiver. At this time, the receiver indicator flashes quickly, then press BIND button of the transmitter, and turn on the power of the transmitter at the same time, the indicator of the receiver is always on and the linking is successful) Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Blue & Black Material:Plastic Package Contents: 1 * receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.