Headphones may not be connected properly to the set. The headphones/earphones wire is used as the aerial/antenna. Please make sure that the earphones or headphones plug is fully inserted into the unit.
Weak radio signal. The headphones/earphones wire is used as the aerial/antenna. Please keep the headphones/earphones connected to the set and stretch out the wire for optimum reception.
Interference from electric appliances. Keep the player away from the electric appliances as they will interfere the radio reception.