JBL Pure Bass Sound - 12mm drivers enhanced by form factor to deliver powerful bass. Active Noise Cancelling minimizes the distractions around you. Ambient Aware - tune into your surroundings and hear the world around you. TalkThru lets you stop for a quick chat without removing earbuds. 4-Mic technology provides crisp clear calls. 8 Hours on a single charge - additional 24 hours with case. IPX4 Water and sweat resistant. JBL Headphones app. Frequency response: 20Hz-20kHz. Impedance: 32 ohms. Includes: Charging cable. 3 Ear tip sizes. Open ear tip.