Philips SHB2505 Wireless Earbuds features an ultra-lightweight and comfortable design allowing you to enjoy music for long hours without any discomfort. Engineered to perfection, the earphones come equipped with 6mm speaker drivers to provide detailed HD sound as well as solid Bass. Rated IPX5 for waterproof, you can even wear them in rainy conditions and listen to your favorite music while on the go. For charging, simply attach the case to your keychain and enjoy up to 9 hours of on-the-go listening time with 2.5 hours of listening time on the earbuds between charges. These wireless earbuds can also be used to handsfree calling while driving or riding a bike.