FrSky TFR4B 4ch RX FASST

Features:
Compatible with FASST 2.4G: Air Systems (7CH Mode/Multi Mode) & Surface Systems (C1 Mode);
CPPM and RSSI (PWM) output - If CH3 and CH4 are connected by a jumper, CH1 will output CPPM for CH1~CH8, and CH2 will output RSSI (PWM);
Light weight and small size;
Two selectable failsafe setting options

Specifications:
Number of Channels: 4
Operating Voltage Range: 3.5V~10V
Operating Temperature Range: -10℃~80℃
Dimension: 42x17x7mm
Weight: 4.6g