Audio cable (3.5mm stereo jack to 3.5mm stereo jack)  for your Gear4 StreetParty Compact portable speaker dock. 

Directly connect iPhones, smartphones with the 3.5mm headphone socket to your Gear4 StreetParty Compact speaker via the Aux input on the rear of the speaker. 

Note: For iPhone 7, 8, 10, X  etc without headphone socket, use the Apple Lightning to 3.5mm socket adapter often included with iPhone.