The battery provides up to 6 hours of playback Simply pop them into the case between listens for an additional 16 hours of battery life. That\'s a total of up to 22 hours - now you can finish even your long playlists. Ready in seconds The first time you turn them on, the earbuds automatically go into pairing mode. Then they automatically pair with the last device you used. Easy to control Simple controls let you adjust volume, tracks, or activate your voice assistant, so you don\'t even need to touch your phone. With the dual mics you\'ll have crystal clear calls. Key Features Weight: 49 g Built-in Microphone Battery life: Up to 6 hours- Up to 22 hours with charging case Sensitivity: 97 dB Frequency response: 20 - 20,000 Hz Charging time: 1 hour Resistance: Sweat & water resistant (IPX4) Control compatibility: All smartphones Control positioning: Earbud Type:In-ear Charging method:Charging case via USB Connectivity: Bluetooth Remote control Volume control Maximum input power:v10 mW Impedance:32 Ohms Passive noise-isolating App: Skullcandy App Battery:Internal Lithuim-Polymer