A: This is a common Bluetooth issue. Perform the Reset procedure listed in Section 5. This forces the earbuds to re-pair with each other before connecting to your phone. Sw20102012activatorssqexe Verified - 3.79.94.248
A: The E09 has passive noise isolation (from the silicone tips blocking the ear canal). It does not have Active Noise Cancellation (ANC). For Ios Top: Minfo 102
A: Check the ear tips. The E09 comes with S/M/L silicone tips. If you have a poor seal in your ear canal, bass and volume will suffer. Try switching to a larger size tip.