2.4GHz Wireless speaker with lamp detail information No wire limited Built-in bland light Suitable for CD DVD TV MP3 stereo PC laptop MAC iPod home theater audio player. Transmitter Parameter: Frequency range: 2400-2483MHz Date rate: 2M bps Transmit power: 10 dBm Power source: Rechargeable btteries or DC/AC adapter Receiver and Audio Parameter: Frequency range: 2400-2483MHz Receive sensitivity: -90dBm Signal to noise ratio: 88dB Frequency response: 20Hz~20KHz (-3dB) Power source: Rechargeable batteries or DC/AC adapter Impedance: 4 ohms Speaker Case Specification: Material: Fiberglass resin Detail Feature: 1. The power source is by rechargeable batteries or using the includede AC adapters. 2. Waterproof, IP44, when in the outdoor, do not think much just turn it on. 3. Built-in RF receiver and audio amplifier 4. Auto scan control panel on the side 5. The Remore control is included which allows you to control the music via the speakers. 6. The receive signal up to 100feet. 7. Accessory Includes speaker system, transmitter, audio cables. 8. It can simply connect to most of audio source and any audio device with an output jack such as CD, DVD, TV, MP3, stereo, PC, laptop, MAC, iPod, home theater. 9. This rock shape wireless speaker can let you enjoy you favorite music anywhere and anytime in the hourse or outside. Ture 360 sound for your experience, can enhance the pleasure and make you feel more at peace and surrounding well with nature 10. It have bland light(Energy saving or LED light), can illuminate the speaker when use in night. It will give you very romantic feel with the sweetness music.