What headphones are recommended for use with my radio?
Any wired stereo headphones will work with the unit. Anything with a starting impedance of 10 Ohm and a stereo 3.5mm jack plug connector will be fine.
The Move 2500, 2520, R3 and T4 are only compatible with 2 pole earphones. Any 3 or 4 pole earphones are likely to have volume control or a microphone which can interfere with the signal as the earphones act as the aerial.