WRLSS OPNER HP BLK

• 16 mm neodymium drivers with bass reflex structure for powerful sound and low sound leakage;• Frequency response: 20 Hz to 20 kHz for faithful sound reproduction;• Bluetooth(R) 5.1 True Wireless with ability to use just a single earphone; music streaming plus hands-free calling with multiple microphones and noise reduction for clear voice transmission; smartphone voice-assistant compatible; touch-control operation;• Will not block ear canal so surrounding sounds can be heard--ideal for use outdoors, in office, or daily activities; can be worn with glasses or mask;• Waterproof and sweat-resistant (IPX4);• Up to 7 hours of battery life plus up to 10 additional hours with slimline charging case for total of 17 hours; earphones recharge in 2.5 hours while charging case recharges in 2 hours;• Includes USB charging cable;