This audio receiver is plug and play, which is easy and convenient to use. This audio receiver adopts Bluetooth-compatible chip, which can bring you quick and stable data transmission and high-fidelity sound effect. It is constructed of ABS material. The length of this audio receiver is 4.4cm, width is 3.5cm and thickness is 0.7cm. This audio receiver is suitable for speaker, TV set, sound box and so on. Item Name: Audio Receiver Material: ABS Bluetooth-compatible Version: 5.1 Transmission Rate: 2Mbps Interface: 30Pin Transmission Distance: 10m Features: Quick Transmission, High Fidelity, Anti-interference Size Details: 4.4cm x 3.5cm x 0.7cm/1.73" x 1.38" x 0.28" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Audio Receiver Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia