Super ear - headphone amplifier and microphones - soldering kit

Headphone amplifier with two microphones (stereo). Amplifies surrounding sound up to 50 times. Ideal for hearing impaired people watching TV (without disturbing the environment). With on/off switch and 3.5 mm headphone output. LED indicates when the amplifier is switched on. Powered by three 1.5 V AAA batteries (not included). Headphones not included.