$23 for a radio has me concerned. I have servos that cost more than that so it has me wondering just how good the quality is. The other thing that I saw is that it takes a USB cable to charge it. That in itself makes it impossible to charge using any of the standard chargers now on the market:
Transmitter Specs:
Model: Car/Boat
RF Power: 20dBm (100mW) max
Modulation: GFSK
System Type: AFHDS
Sensitivity: 1024
Low Voltage Warning: Yes
DSC Port: 3.5mm
Charge Port: Yes (USB- charge cable included)
Power: 3.7V 800mAh li-ion (included)
Weight: 270g