Spark High Definition In-ear Headphones are the combination of precision acoustics, unique design and expert ergonomic research. Powerful and accurate acoustics are achieved through high performance dynamic driver and special high definition acoustic filter built-in, resulting in full, explosive bass, intense mid-range and clear treble frequency response that will put a smile on your face...
*On/Off switch-saves batteries. *Self-adjusting headband. *Channel selector. *Volume control. Listen to music on the porch,in the yard,or from any room in the house. Selectable,3-channel PLL circuitry for superior reception. 900MHz operation for crisp,clear sound. Long range-up to 150 feet