Ultra Long Battery Life: An optimized battery provides hours of continuous play/talk time on a single charge. Charging case of 300 mah can charge truly wireless earbuds for 3-4 times Latest V5.0 Bluetooth Technology: Hammer introduces a new true wireless V5.0 TWS Bluetooth earphones bringing up high speed data transfer, Stable Performance and low battery consumption. Comfortable Fit: The Bluetooth earphones will not fall during exercise and provide a more comfortable fit. Earbuds are super lightweight and has no burden when you wear them for workout, travel or calling. Monopod capability: Hammer Airflow buds can be used as two independent monopods. Usage: Hammer airflow truly wireless Bluetooth earphones are designed for calling, music, gaming, sports and active lifestyle.Battery:Enjoy music playtime/talk time up to 4 hours on a single full charge, super quick charge time of only 1.5 hours and 60 hours of standby time, For any product related query, service and warranty contact 99911 08081 or write to info@hammeronline.in