Plantronics Backbeat Fit (Boost Edition) are the ultra-light and portable headphones from the BackBeat Fit series. These powerful earbuds are designed to provide big sound in a small and compact design. The headphone offers powerful audio with top quality sound drivers while occlusive eartips block out noises and delivers deep, rich sound. Boasting a secure fit eartip design which stays fit for all levels of exercise and gives comfortable all day wearing. They feature water-resistance construction and works through rain, sweat and even the splash of a sports drink.