I bought a leeco letv 2 when it was on air. I got freebie cdla headphone with it. Now it cost rs1999.
The design and looks exactly like apple headphones . Actually the mobile also look like apple. I do not know leeco is a copy cat. Bur it does.
About headphone the mobile itself have a cdla mode. When it is Switched ON we cant change any adjustement like increasing boss and change jazz, live or anything.
About the amount us too high. I am a harduser like I curled it and put it in my pocket. But consider the amount it should be better quality.
After using 2 to 3 months it get peeled. The inner copper wire are gotten out. I dont know about other companies cdla headphones.but I am using letv cdla headphones.