With its thin speaker drivers and specially tuned acoustics, the ultra-slim Harman Kardon Esquire Mini 2 Bluetooth speaker delivers high-fidelity sound. Moreover, it features a conferencing system with noise cancellation for crystal clear conference calls on the go. The speaker supports up to ten hours of playtime and comes with a built-in powerbank to charge other mobile devices. Thanks to its practical stand on the back, it can also be positioned upright.