Bluetooth V5.0: With the latest Bluetooth technology, Hammer Solo 2.0 pair faster, have lag-free & dropout-free connections plus greater range than ever before. All Day Comfort: Hammer Solo earbuds are ergonomically designed to fit comfortably in your ears and stay secure even with the most active lifestyles. Long Usage: IPX4 rated sweatproof design, 800 mAh charging case provides more than 5 recharges for your earbuds. Multi-Function Use: With controls on both earbuds, you can play, pause, change tracks and even answer or reject calls. All without even having to take your phone out of your pocket or bag. For any product related query, service and warranty contact 99911 08081 or write to info@hammeronline.in