These Ear Buds feature Bluetooth 4.2 Wireless Technology for clear crisp sound. Pair with your mobile device and listen to music and receive 'hands free' phone calls. Includes USB/Micro USB charging cable. Easy to use in-line controls allow you to adjust volume, advance music, and answer phone calls. Ear Buds fit in a compact case that is great for storage in pocket, purse or travel bag with carabiner to attach to clothing, belt or backpack. Each features your 1-color logo imprint with clam-shell package.