Removing troubles of wired connection,through the wireless connection and transmission,the user can enjoy a high fidelity music at any place indoor by wireless control. Compatible with any car stereo speaker or portable speaker with 3.5mm audio socket or USB audio receive port. can let you carry them to anywhere you want. Power supply: 5V power supply;Use for Home Theater, Mobile Phone, Karaoke Player, Computer, Stage. Transmission Distance: up to 15m;Bluetooth version:V4.0 and support A2DP technology. Easy To Operate:Simply connect your speaker with our device,immediately transform your speakers into a fashionable wireless Bluetooth speaker This item is brand new. Self collection @ Kovan MRT only. For pickup at your convenience MRT add $5, delivery to your doorstep additional S$10 with purchase of maximum of 5 pieces Additional pieces is at extra $2 each. OR postage add $1 Do give us 2 days in advance notice. Interested buyers may also directly contact us at 8577-8868.