Do NOT buy
Had numerous problems, with synchro between left and right, random bleeps, and disconnecting. 7 or 8 emails with "Ben" at Mifo, including a request for video and photos of the earbuds. Also twice warned that they may to decide not to refund or replace if they couldn't find a fault. Then complete silence when it came to return time. To be honest I wouldn't trust them with the earbuds because I doubt I'd ever see a refund or replacement product. Donate money to charity instead.