Provided is an improved receiver which comprises an electromagnetic shielding casing, a sounding unit, and an electromagnetic driving unit. The electromagnetic driving unit comprises an armature and an iron core. The armature is formed by bending and in a U shape and comprises a vibrating portion and a fixed portion which are disposed on the two ends of the U-shaped armature. The vibrating portion and the fixed portion are connected via a bent portion. The iron core is a U-shaped frame formed by bending. The fixed portion is arranged at the opening end of the U-shaped frame and forms an enclosed cavity with the U-shaped frame. The vibrating portion passes through the cavity along an axial direction and is partially extended out of the cavity. The electromagnetic driving unit also comprises a coil and permanent magnets. The coil is sleeved on the vibrating portion and is connected with the iron core. The permanent magnets are arranged symmetrically on the top side and the bottom side of the vibrating portion and respectively fixed on the inner sides of the fixed portion and the iron core. The improved receiver decreases the processing cost of the iron cost and enables the receiver to be easy to assemble.