This extremely portable, lightweight wireless audio transmitter receiver is an wireless audio solution for a wide range of situations and uses. With the 3.5mm cable, this receiver transmitter adapter can widely be used on your car,computer, laptop, home stereo system, headphone, smartphone, MP3 player, CD player, etc. Features - Color: Black. - Material: Plastic. - Size: 4.5 x 2 x 1.1 cm/1.8 x 0.8 x 0.4 inch. - Transmission rate: 100Mbps. - Working frequency: 100MHz. - Transmission range: 15m. - Input voltage: DC 5V. - Input interface: 3.5mm audio. - This extremely portable, lightweight wireless audio transmitter receiver is an wireless audio solution for a wide range of situations and uses. - Transmitter mode: Wirelessly streams audio from your non-wireless TV, home stereo system, or CD player to your wireless headphones or speakers. - Receiver mode: Wirelessly streams audio from your wireless-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones. - Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced wireless technology and 3.5mm audio cable. - Broad compatibility: With the 3.5mm cable, this receiver transmitter adapter can widely be used on your car,computer, laptop, home stereo system, headphone, smartphone, MP3 player, CD player, etc.Package list: 1 x Wireless Audio Receiver Transmitter