VocoPro UMHM Frequencies available: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, PII, Q, R, S, T, U, V, W, X Comes with 1 microphone(transmitter) and 1 module(receiver). Shipping Dimensions: 11.5" (L) x 6.5" (W) x 2.25" (H)