Flysky Noble NB4-Pro+ remote control + 2 receivers

Product Model: Noble NB4 Pro+ Compatible Receiver: AFHDS 3 protocol receivers such as FGr4B and FGr8B Compatible Models: vehicles, vessels, robots, armors Number of Channels: 2 (Ultra fast), 4, 6, 8, 10, 12, 18 optional Wireless Frequency: 2.4GHz ISM Transmitting Power: < 20 dBm Wireless Standard: AFHDS 3 Low Voltage Alarm: < 3.65V Data Output: USB Type-C Charging Interface: USB Type-C Antenna Type: Built-in single antenna Display Screen: 3.5-inch 320 * 480 full dot matrix color IPS touch screen Channel Resolution: 4096 Input Power: 1S (4.35V) * 4300mAh lithium polymer battery+3450mAh 18650 battery Remote Control Distance: >300m (open and undisturbed ground distance) Language: CN Version(Only supports Simplified Chinese), EN&EU Version(Only supports English) Online Update: Supported Temperature Range: -10℃ to +60℃ Humidity Range: 20% to 95% Appearance Color: Black Dimensions: 142.7 * 120 * 232mm (including handset holder) Weight: 670g Safety Certification: CE, FCC ID: 2