#1	The volume adjustment key of the earpiece can only adjust the volume of the mobile phone with a 35mm interface on the compatible for iPhone The volume adjustment key of the earpiece is useless for phones You need to use the phone to adjust the volume If y
#2	The handset is 35mm so it is only suitable for mobile phones with 35mm headphone jack If your mobile phone does not have a 35mm interface you need to use a suitable adapter when the connector is connected to the mobile phone please turn it left and right
#3	Noise reduction system improving call comfortAllows access to phone functions when making callsEliminate most absorbed phone
#4	Light and luxurious rubberized softtouch design
#5	One touch button for convenient pickuphangup directly from the handset not all mobile phone support function