Item Type: Audio Adapter Condition: 100 percent brand new Material: Aluminium alloy Color: Black Frequency Range: 2400MHz-2483.5MHz Transmission Power: ≥20dBm Receiving Sensitivity: -90dbm Audio Frequency Response: 20Hz-20KHz SNR: 92dB 20Hz-20KHz Sampling Rate: 48KHz Transmission Delay: <13ms Long Transmission Distance: Approx. 200m (open space) Operating Voltage: 5V Transmitter Operating Current: 240mA Receiver Operating Current: 70mA1,2.4GHz ISM frequency band, 2Mbps high speed wireless transmission of high quality music. 2,Adopt real-time digital coding technology, low delay and high transmitting speed, transmission distance up to 200m without barrier. 3,Portable stereo speaker adapter, extending the wireless audio player for home entertainment. 4,Adopt premium material as well as fine workmanship, sturdy and durable, long service life. 5,Small size and lightweight, stable signal transmission, bringing great using experience.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1 x Receiver 1 x Transmitter 2 x Power Adapters 2 x Audio Cables 2 x USB Cables 1 x User Manual 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.