We would all prefer to be untethered from our mobile device, free to move around without holding the device while we listen to music or talk, which makes our Tech Talk the perfect promotional gift solution! Features Bluetooth 4.2 technology, with a range of approximately 33 feet, and volume control & built-in microphone for answering calls. Compatible with most Smartphones (supports iOS 7.0+ & Android 4.0+ systems). Works with 3.5mm jack earbuds, headphones and external speakers (not included). USB charging cable included with micro USB connector. Compact size (2" x 1 3/16" x 3/4") and convenient alligator clip on back. The best part for you as an advertiser is that the Tech Talk has a large imprint area, so the lucky recipient will always remember you for it! Individually boxed.