My answer on VU Meters, do it WannaDuino STYLE, on Steroids.
Wireless 1 double 10.000mAh powerbank. Check the Links below,
I used 8 8LEDS already done PCB`s and soldered it together.
All the links and CODE are in this description, 
ANYBODY can build this. Arduino Nano power, an IR sensor, and Transmitter a Mic sensor.

WS2812 LED strips,
Arduino Nano,
Arduino Nano and expansionboard,
IR Sensor,
Mic Audio Sensor,
And for a transmitter, you can use your TV one. or use a momentary Switch if you don`t want it wireless. Or do both.
The IR can toggle over sometimes.
For some BARGAINS check BangGood, al my gear comes from them.