RadioShack Stereo Amplified Listener with 3-Band Equalizer - Compact, Portable - Fits All Headphones with 1/8" Plug

Plug in some headphones and use this amplified listener to boost the sounds around you.
€ It's ideal for places where you have difficulty hearing the speaker, such as large lecture halls and church.
€ Or you can use it to watch TV without disturbing others.
€ The three-position equalizer control lets you choose the amplification you need for your particular listening environment.
€ Includes a convenient around the neck lanyard.

Part Number: 3301097
Dimensions:
€ 3.5 - 2.2 - 0.7in
€ (90 - 56 - 17mm)
Color: Black
Power Supply: 2 AAA Batteries
Frequency Response: 150 Hz to 10,000 Hz
Equalizer Bands:
€ 900 Hz @10dB
€ 3,000 Hz @10dB
€ 6,000 Hz @10dB
Headphone Jack Impedance: 16 ohms
Sensitivity: -64 dB (0 dB = 1V/600 ohms, 1kHz)
Maximum Output Power: ~ 30 mW Per Channel @10% THD
Battery Life: ~ 50 Hours (continuous use)
UPC: '040293153922