STARAUDIO 2Pcs STARAUDIO 15" 4 Ohm Powered Active DSP Stage PA DJ KTV Karaoke Audio Speakers With TWS Bluetooth USB SD Card Specification:SDPT15052023System: 2-way full rangeWoofer:15" 50oz magnetTweeter: 34mm Ti.Diap.DriverPeak Power: 3500WattsFrequency Range: 40Hz~20KHzSensitivity: 100dB(+/-2dB)Connector: XLR/RCA/6.35mmMic Input Level: <5mVLine Input/ Output Level: 250mVFlyable and Stand mountableCabinet Weight: 35LbsShipping Box Size: 29.72"H x 19.88"W x 16.53"D INSTRUCTIONS:Do not overload the box to avoid damage to the speakers.Do not place an open fire(candles etc) on top or next to the box-FIRE HAZARD Only connect to an earthed mains outlet of 110Vas/50Hz.For indoor use only. If the box is used outdoors, you need to make sure that no humidity can enter the box When not in use , unplug the unit from the mainsUnplug the unit from the mains prior to checking or replacing the fuse. Make sure that the box is placed on a stable ,strong surface.The boxes can be hung,Use only strong and approved mounting material. During the mounting ,make sure that nobody is standing below the mounting area.Do not place liquids on the box and protect it against humidity .Humidity can shorten the life item considerably.Only use suitable means of transportation if you want to move the box -BEWARE OF YOUR BACK!!Always unplug the unit during a thunderstorm of when it is not in use.If the unit has not been used for a long period of time, condensation can occur inside the housing. please let the unit reach room temperature prior the use.Never try to repair the unit yourself, It does not contain and user serviceable parts. Run the mains lead in such a way that nobody can fall over it and nothing can be put in it .Set the unit to the lowest volume prior to switching it on. Keep the unit out of the reach of children. Package includes:(2) 15" Powered Speakers (2Pcs SDPT15052023)(2) User's Manuals(2) Power Cords(2) Remote controls