response speeds, incredible range
Supports 4 proportional and 1 switch channel (ExpressLRS 2.x)
Supports 5 proportional channels (ExpressLRS 3.x)
Compact size, easy to install. Perfect for Surface, marine, and air R/C applications.

Specification
Item: ER5A 2.4GHz Receiver
Power supply: DC 4.5-8.4V
Antenna type: high sensitivity T-shape antenna
Wireless Protocol: ELRS 2.0 pre-installed
Output channel: CH1-4 standard PWM; CH5 switch (ON/OFF) PWM
Weight: 6.6 grams
Size: 37*19*13mm

Includes
1x RadioMaster ER5C ELRS PWM Receiver
1x Spare Long Antenna