Shure SLXD2/SM58 H56 - digital UHF Handheld transmitter with dynamic SM58 capsule; cardioid; frequency response: 50 - 16.000 Hz; 24 bit / 48 kHz audio transmission; Frequency range 518-562 MHz; 120 dB dynamic range; 44 MHz switching bandwidth; switchable transmission power 1 mW / 10 mW; external charging contacts; transmitter works with 2x 1,5V AA Battries or optional SB903 Lithium Ionen rechargeable battery; incl. microphone clamp, storage bag and 2x AA batteries;