Pyle Model : PBKSR40Desktop Bluetooth Bookshelf SpeakersHiFi Studio Monitor Computer Desk Stereo Speaker System, Connections and Studio Quality Sound (60Watt MAX)Features:One Pair 4'' Two-Way Coaxial Loud AudioLED IndicatorsPowered Bookshelf Desktop SpeakersPro Audio Studio Monitor PerformanceHi-Fi Full Range Stereo Sound ReproductionBuilt-in Bluetooth Receiver for Wireless Audio PlaybackAbility to Connect & Stream from External DevicesMP3 Digital Audio File SupportUSB Flash Drive ReaderActive + Passive Speaker SystemBuilt-in Digital Audio AmplifierAudio Processing Bass Reflex Active SpeakerRear Panel Control CenterRCA (L/R) Aux Audio Input (Active)Easy Connect Speaker Spring Terminal (Passive)Bass, Treble, Volume Audio AdjustmentPower ON / OFF SwitchWhat’s in the Box: Active Bookshelf Speaker Passive Bookshelf SpeakerUS AdapterOptical CableL&R Connection WireRemote Control3.5mm to 2 RCA CableBluetooth Connectivity:Built-in Bluetooth for Wireless Music StreamingSimple & Hassle-Free PairingWorks with All of Today’s Latest Devices(Smartphones, Tablets, Laptops, Computers, etc.)Bluetooth Version: 5.0Bluetooth Network Name: ‘PyleUSA’Wireless Range: 33’+ ft.Technical Specs:Channel: 2.0; Active SpeakerPower Output: 60Watt MAXSpeaker Size: Sound System: 4’’ Subwoofers: 1’’ TweetersSubwoofer Type: Polymer PPTweeter Type: Mylar DomeBass Port: Bass Reflex TubesDSP: Movie/Music/News Audio ModeFrequency Response: 40HZ-20KHZSpeaker Impedance: 8 Ohm (Tweeter), Full range:4 OhmSNR: ?80dBDistortion: ?1%Construction Material: MDF/ABS + Fabric clothPower Cable Length: 5.9’ ft.Power Supply: 100-240V, DC 21V/1.5A MAX 4A (Adapter)Remote Control Battery Operated, Requires (2) x 'AAA' Batteries (Not Included)Battery Type: 1.5V Lithium-ion 1300mAhBattery Life: Up to 2+ HoursSpeaker Dimensions (L x W x H): 6.1'' x 6.1'' x 9'' -inches (Each)Sold as: 1Weight: 8.13 lbs.