Features:

Transmitter: The system comes with two Radio Frequency omnidirectional transmitters/charger (only one needed per system) that connects to an audio source via analog stereo preamp connection. It transmits a 900 MHz signal up to 250 feet to the wireless speakers, using one of three selectable transmission channels. A channel select switch on the transmitter allows the use of other 900MHz equipment in the same area as the speakers are being used to avoid interference.

Speakers: The self-powered, 20 watt RMS speakers  are a Two-way acoustic suspension design capable of outdoor use. The speakers features a 2" dome tweeter and 5" cone woofer which are powered by a self-contained 7.5 watt digital amplifier with a 40 to 15kHz frequency response. The speakers have a left/mono/right switch on the right side of the speaker so you can use the speakers as a stereo pair in one location or as separate mono speaker in your desired location. The speakers are powered by either the supplied AC power adapter or by 8 "C"-cell batteries (not included). The battery compartment is located on the bottom of the speakers and requires three phillips-head screws to be removed.

• Note: If you are using rechargeable batteries, the batteries will charge when the speakers are powered with the AC power adapters. The AC adapters will charge rechargeable NiMH or NiCd batteries (not included).