Free up channels and deliver reliable, pairable Bluetooth V4.0 directly to your mixer or powered speaker with the On-Stage BC2000 Bluetooth Stereo Converter. Complete with 2 stereo Bluetooth receivers and USB charging cables, the super sensitive (-80dBm+/-0.1%BER) and all but noiseless (S/N 75dB) 3.7V lithium-ion battery-powered BC2000 delivers the zero-sum convenience of traditional converters with true stereo fidelity for up to 10 hours of 30' wireless transmission