This is the smallest wireless earpiece in the world. Perfect for any occasion and easy to use. How to use If necessary, wear the skin color loop on your neck or under your clothes. Connect the plug to your cell phone slot and talk into the microphone normally and hands free. 1)  How to wear the earpiece? Clean and dry your ears thoroughly right before use. Wear the loop set and connect to devices correctly, turn the cell phone volume down. Put your ear  to the sky. Carefully release the earpiece, let it fall into your ear canal.  Slowly turn up the volume, and it is working. 2) How to take the earpiece out? After useing, don`t forget to take the earpiece out with the magnet 3) does it need power? This earpiece dose not  need power to work, but the loop transmitter needs two  9V batteries. After using, you¡¯better removed the batteries. * Usually wearing one earpiece is enough to get clear sound. If needed, wearing two earpieces in two ears to improve. Package including : 1 loop set wire whit 3.5 mm Jack  1 Microphone  2pcs Earplug  1pc magnet note: 9V batteries is not included.