Description: This RC receiver unit is Futaba S-FHSS compatible. It is designed especially for FUTABA 7PX transmitter. It offers full 7-channel support in ultra-light weight and micro size. It is ideal for micro cars. Features: 1. Futaba 2.4GHz S-FHSS compatible 2. High performance CPU enhance precision control feeling 3. 7 channel support (Only Futaba 7PX, other FUTABA transmitters like 4PX, 4PV could only use 4 channels) 4. 1.8A Bi-Directional Brushed Motor Driver controlled by throttle channel(CH2) 4. Micro size (21x13x2.5mm) 5. Ideal for any micro rc racing chassis 6. Added failsafe function 7. Operating Voltage 3.7V – 5.5V: 8. Weight: about 1g Compatible Transmitters: Futaba 7PX, 4PX, 4PV, 3PV, 4PLS... Package included:1X Receiver(with the esc)