Walmart has the The Singing Machine Bluetooth CD+G Karaoke Sound System w/ LED Lights, Mic (Black or White, SML633) on clearance for $33 with free shipping with Walmart+ (30-day trial) or on $35+. Supports 2 microphones, operates via AC adapter or 8 C-size batteries. Also on sale:

• Singing Machine Fiesta Go with Multi-Colored LED Lights (SML640) for $41