Stereo Headset Hands-free for PANTECH Link II P5000 Handsfree Headset The new packing is compact size and nice looking, and the silver-plated insert paper gives prominence to the product. The handsfree use soft and environmental protection wire instead of the common wire, and the soft silicone rubber in-ear cushion of handsfree is comfort and using convenience. Crystal clear and high quality voice for both talking party, noise cancellation, high-velocity element for excellent stereo effect. Sound Pressure Level: 107dB3dB/100mW Total Harmonic Distortion: &lt;=5,(Input Power: 10mW; Frequency Range: 20Hz~20kHz)