... regulation, the microphone volume regulation size, plug-and-play intelligent wireless connection, 3 second response, whether study or living room, no constraint ... field.For twelve years, we focus on H D M I, S A T A, U S B, D V ... I, V G A, S R S, M H L and ... an order of up to 10,000 H D M I cables, 20,000 U S B cables, 50,000 S ...