Features:

• Supports 8.4V HV servos and accessories
• Robust, injection-molded receiver casing
• Fast 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. 

Specifications:

• 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