1. This extremely portable, wireless audio transmitter & receiver is an ideal wireless audio solution for a wide range of situations and uses 2. Transmitter mode:wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers 3. Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones 4. Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced Bluetooth technology. 5. Super-Portable Audio-Streaming Power The KN326 is just 44mm (1.73inch) across, but has got powerful wireless audio streaming capabilities. Slip this transmitter & receiver into your backpack or laptop bag and take it on-the-go without the slightest effort. Color: Black Material: ABS Package Contents: 1 * Bluetooth Transmitter Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.