Wearing this type of Bluetooth headset/earbuds you can pick up your phone or listen music when you are racing, jogging, traveling, walking or during any other outdoor events. The headset can connect with your cell phones or music player via its Bluetooth function, you can pair two digital devices in the meantime. Lithium battery installed. 3 Hours calling time and 10m bluetooth distance. Great for sports, offices, meetings, camping, travel, clubs, colleges, and trade shows as a promotional gift with your custom logo imprint.