In-line Controls: Answer/reject/ calls, play/pause, voice command. Ergonomically designed drivers: Aerospace grade AL alloy drivers give the best acoustics, 3D HD sound and a punchy bass. IPX5 Water-Resistant Ear fins for Sport Fit: Ear loop hold your buds in ear stably (colour of the ear loops may vary), perfectly fit for running, climbing, hiking, cycling etc Extra Bass: Boult’s Neodymium technology enables drivers to deliver extra punchy and deep bass with accentuates the warm mids and crystal clear sparky highs Built-in Mic: Condenser microphone for HD calls and Siri/ Google assistant voice command Lightweight , comfortable & premium metallic finish, Tangle Free