The Revolabs HD Dual Channel Bundle System with ST30P Powered Speakers (Black) comes without microphones. This allows you to mix and match which wearable, tabletop, omni and directional HD Wireless Microphones you need. The HD Dual Channel System is ideal for audio conferencing, video conferencing, broadcasting, education, houses of worship, PC audio, plug-and-play, professional audio, video carts and rental/staging applications. It features dual female 1/8" (3.5 mm) balanced outputs and dual female 1/8" (3.5mm) balanced inputs. There's also a USB port for firmware updates only.
The HD Dual Channel System is equipped with pairing push buttons, as well as LED channel indicators. It has a wireless transmission range of up to 150 feet (45 m) and features full 50 Hz to 20 kHz frequency response. It's also impervious to GSM noise from cell phones and other devices. The charger base features dual proprietary 4-pin microphone charge jacks that work with HD Wireless Mics. The system supports both North American and international radio frequencies. Plus, it comes with a universal 100 - 240 V, 50/60 Hz power supply for worldwide use.
The included speakers are Australian Monitor ST30P powered stereo speakers. They feature 5.25" bass drivers and dome tweeters. Each one delivers 30W of RMS power output, which means that the pair of speakers combine for 60W of RMS total power output. There are even onboard bass, treble and volume controls. Plus, the speaker pair are equipped with a power switch, stereo RCA line input and speaker output. Each speaker is also magnetically shielded, which helps ensure high-quality sound reproduction. The pair come with mounting "U" brackets as well.