AVS2.4 is a 2.4 GHz wireless Video / Audio transmitter & receiver system. This product is designed to transmit any video and audio source (for example, TV, radio, CD, VCR, DVD, projector, cable or satellite signals) around the house, office, factories etc without the need for drilling holes to lay cables at all. This unit even sent crystal clear audio signals. For remote surveillance AVS 2.4 can also be connected with any of our CCTV cameras, convention or miniature to be use as surveillance. IDA approved for use in Singapore(Phone shown not include in the kit) We have temporary stop selling this item due to no stock. If you need them urgently please call to check on the price. Thank you.