2.4GHz Analog Portable Indoor/Outdoor Wireless Speakers These are the wireless, battery-powered speakers with a water- and UV-resistant exterior that allow you to listen to music by a swimming pool or any location without the need for speaker cables or outlets. 1. Transmitter is able to connect with any music device, such as MP3, stereo system or portable CD palyer 2.2.4GHz analog signal wireless broadcasts to speakers from up to 150' away. 3.3 wireless channels, minimizing interference, penetrates walls, floors and crisp sound. 4.10-watt speakers (5" subwoofers and 1" tweeters) 5. Each speaker is powered by rechargeable battery that operates 8 hours, and also can powered by AC/DC adaptor. 6. Include speaker wall brackets for wall-mounting 7. Come with RCA cable and remote control for the speaker volume, bass, treble. 8. Package includes 4.5A Lead-Acid internal rechargable battery for speaker that have continous use for 7 hours. 9. Digital Amplifier Additional offer: This design is able to use 2.4GHz digital wireless broadcast.