Plantronics BackBeat Fit 305 Wireless Earbuds 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 6mm 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 features IPX5-rated water-resistance and works through rain, sweat and even the splash of a sports drink. The easily accessible in-line controls let you keep moving while you control your music or calls. It has Bluetooth v4.1 and wireless range is up to 33 feet or 10 meters. Moreover the BackBeat Fit 305 offers up to 6 hours of music playback, 6 hours of talk time and 10 days of standby time.