The Williams Sound PKT 2.0 Pocketalker is a versatile, high-quality assistive listening device designed to improve communications in difficult listening situations. This personal amplifier offers on-board tone controls that allow you to tailor your listening experience with high-quality sound and a broad frequency range. This slim, ergonomically designed amplifier couldnt be easier to use. Simply plug in the headphone or earphone, position the microphone near the preferred sound, adjust the volume to your comfort and start listening.Features:Up to 63dB amplificationTone controlBalance control between left and right earOmnidirectional internal microphoneOmnidirectional plug-in microphone for enhanced sound pick-upFunctions as t-coil receiver in looped Amplifies your TV with included cordIncludes both headphones and earphones3.5mm stereo headphone jackUp to 105 hours of use with 2 AAA batteries5 year Limited Warranty (parts and labor)Add a cleaning kit and extra battery to complete your bundle!