RetekessTR508 Separate Audio and Mic InputIncluded 3.5mm audio cable; you will love the ability to broadcast your favorite music and audio sources to any FM radio.Volume Control, The line in volume and the microphone have separate volume controls;Turn up the volume on the mic while reducing the volume of the audio with a press of a button. Retekess PR13 FM Radio Receiver,with the Special 5 station presets design,can works for Simultaneous Interpretation,can save your favorite station; 5-Key Direct Tuning Preset Memory;DSP (Digital Sound Processing) technology; Offer international time 24 hour clock;This radio support international time 24 hour clock,and you can use it a little portable clock. Package includes: 1xTR508 FM Transmitter. 1x100~240V Supply. 1x 3.5mm Audio Cabl. 10 x FM radio receiver. 10 x In-ear stereo earphone. 10 x Lanyard. 1 x User English manual.