The Personal Television as well as Theater Amplifier from Hammacher amplifies receptive to advice from a television, radio, or drama by up to 50 decibels. The device additionally facilities a directional microphone which amplifies high- as well as low-frequency sounds to furnish rich, easy-to-hear tones. It is powered by a lithium-ion battery which offers up to 18-hour of battery life. You can recharge a battery around an AC charger(included). $29.95 is all we need to move home this wearable gadget. [Product Page]