Samson SM4U 4-channel Half-rack Line Mixer Features: 

• 1U half-rack makes for a small footprint with big audio capabilities
• Great for commercial and connected sound system installation
• 4-channel mixer that allows for connection through multiple sources
• Priority ducking through voiceover control lets voices be heard over all other audio
• XPD wireless USB port allows for connection to computers, laptops, and tablets
• Stream from a wireless device through Bluetooth 
• Excellent choice for fitness clubs, gyms, restaurants, night clubs, schools
• Mic and stereo line inputs as well as back panel RCA inputs
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  Tech Specs
• Type:4-Channel Stereo Line Mixer 
• Channels:4 
• Faders:Rotary Pots 
• Inputs - Mic Preamps:1 x XLR-1/4" combo 
• Phantom Power:Yes 
• Inputs - Line:1 x Dual RCA Stereo, 1 x 1/4", 1 x 1/8" 
• Outputs - Main:2 x XLR (main), 1 x Dual RCA Stereo 
• USB:1 x Type A (Samson XPD Wireless USB Input) 
• Bluetooth:Yes 
• EQ Bands:2-band 
• Rackmountable:Yes 
• Power Source:15V DC power supply 
• Height:1.75" 
• Width:8.75" 
• Depth:5.5" 
• Weight:1.76 lbs. 
• Manufacturer Part Number:SASM4U