Features: 1) Frequency range: FM88-108MHz 2) Output power: >250mW 3) Power supply: DC 3V (2 x 1.5V AAA) 4) Dimensions (W x H x D): 125 x 65 x 25mm Inner packing: 1pc/color box Outer packing: 100pcs/ctn Size: 39.5 x 29.1 x 41cm N.W.: 7.4kg G.W.: 10 kg