A2pro R4X Pro-Tronik Receiver

(This text is machine translated) Pro-Tronik 4-channel R4X receiver 4-channel receiver Dual 17cm antenna Dimensions: 24x15x5.5mm Weight: 4.5g 2.4GHz FHSS only compatible with PTR-6A transmitter. Extremely reliable and secure. Built-in bind button, no jumper needed to bind receiver and transmitter. Supply voltage 3.7~8.4V Range: 450m (on the ground) Special function for range test which avoids having to move far away from the transmitter. Very low power consumption. Integrated fail safe.