Pyle PHPHA76 2.4g Wrls Tv Assistive Hearing Amp Headset

? 2.4GHz wireless digital audio transmission;? Audio-amplifying system;? Convenient wireless design;? Effectively reduces background noise;? Noise-canceling & voice-clarifying technology;? Auto Signal Control regulates & balances sound;? Docking station charges hearing aid;? Built-in 3.7V Li-Ion rechargeable battery;? Up to 18-hour battery life;? About 3.5-hour charging time;? Over 50ft transmission range;? Freq resp: 20Hz-15kHz;? Universal size fits all;? Tone, balance & volume adjustable;? Built-in microphone for smartphone calls;? Connects to TVs, computers, DVD players & more;? 3.5mm audio, coaxial & optical inputs on receiver;? Auto power off;? Brown box packaging;? Includes receiver docking base, wireless hearing amp, replacement earbuds, 3.5mm RCA connection cables, clip-on microphone extension cable, digital optical fiber cable, wall power adapter & USB charging cable;