Features:brand new and high qualityEasy To Operate: Simply connect your speaker with our device, immediately transform your speakers into a fashionable wireless BT speaker.Wireless Play: Removing troubles of wired connection, through the wireless connection and transmission ,enjoy a for high fidelity music at any place indoor by wireless control.Perfectly Compatible: Our products can be for nearly 95% of mobile phone or computer on the market. Support for iPhone and most kinds of for smart phones.Portable design: with mini size ,the feature of portable can let you carry them to anywhere you want.Lossless High-quality Sound Quality Presentation: The latest RDA solution technology, the device and speakers are connected via BT, without loss of sound quality. Let you enjoy the most original high-quality music. Specifications:BT 2.1+EDRSupport A2DP V1.2Powered by: 5V for DCTransmission rate:3(Mbps)Transmission distance: about 10 for mPower supply mode: USB-POWERMaterial: ABSColor: BlackProduct Dimension: approx. 20x55mm/0.79x2.17inches Net Weight: 15g/0.03lbs Note:Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes:1x Wireless 3.5mm Audio Transmitter