Comes complete with a built-in wireless receiver and hand-held wireless cardioid electret condenser microphone, battery, re-charger and shoulder strap.FEATURES:WIRELESS SPECS:[ Carrier: 169.505MHz or 171.905MHz.[ Oscillation: Quartz Controlled.[ Max. Deviation: 15 kHz.[ Antanna: Built-in.[ Sensitivity: 12dBmV @ S/N > 80dB.PA SPECS:[ 27 Watts. [ THD: <1%.[ Frequency Response: 50Hz to15kHz, +/- 3dB.[ Audio Input: Built in Wireless Receiver, 1/4 Mic, 1/8 Line.[ One 5, Full Range, 4 ohm Speaker.[ Additional 1/8 Line In for Plugging in Multi-media Sound Sources. [ Built-in, 12v/2.7amp Hour Rechargable Gel Cell Battery with Up to 8 Hours of Play Life (Battery Recharges Completely in 4 Hours).[ One Wireless, Electret-condensor Microphone/transmitter (Will Operate for 32 Hours Off of One 9 Volt Battery), p/n 069-1102-00X, (1 or 2, Depending on Frequency).[ AC to DC Power Adapter.[ Line Out Jack Allows You to Send the Audio Signal to an External Amp, Mixer or Recording Device. [ Mic Stand Adapter.[ Shoulder Strap.[ 5 Year Warranty. ";