The on the receiver side is the Lenovo K9 Note Mobile Ear Speaker Replacement. It may be damaged by water, liquid, fluid intrusion or dust,It may result in no voice or noise voice. your phone denies receiving the voice if the ear phone gets hurt. Therefore to have a two way communication the ear piece must be replacement in chennai. ifix technician use genuine original spare parts for replacement it with standard. So visit our lenovo service centre in Chennai (or) Lenovo K9 Note Mobile Ear Speaker Replacement in chennai, have a live chat with us, call us at 7449274492 or email us at email@example.com You can also get a FREE PICK & DROP service for your damaged .