*Return policy: There are no overstock or defective/DOA returns to the SMCCD Bookstores. The end-user must contact Apple for warranty support. Custom acoustic platform delivers powerful, balanced sound. Active Noise Cancellation (ANC) blocks out external noise to create an immersive experience. Easy-to-activate Ambient Mode to hear what's going on around you. Pairs to Apple and Android devices with a single tap. Two microphones with beamforming technology that elevate the quality of calls and the use of the voice assistant. IPX44 rated sweat and water resistance. Three pad sizes to combine comfort and stability with optimal sound insulation. Up to 8 hours of battery life (up to 24 hours with the portable charging case). Siri is activated by your voice. Industry-leading Class 1 Bluetooth® technology offers greater range and less signal loss. Universal charging (USB-C).