Each Bluetooth earbud contains a premium audio music driver. Supports HSP, HFP, A2DP/AVRCP. In-call stereo sound w/ fast & stable transmission w/out any interference. A BT range of up to 33+ feet. Compatible with the iPhone XS Max, XR, XS, X, 8 Plus, 8, Samsung Galaxy S10 Plus, S10, S10e, S9+, S9, S8+, S8, S7, Note 8, Note 5, iPads & More!