Yamaha NX-50 TV Sound Booster (2x 7 Watt, 2x 3.5 mm jack) for PC / Tablet and Smartphone Black (Personal Computers)
I bought in white color as a substitute for the faint sound of the Samsung flat-TV. Practically, since over 3.5 mm jack headphone output to be connected (the built-in TV speakers are turned off), the volume is then regulated nice about the TV operati