1.Power on They will auto pairing when you take the earphone out of the charging box.Also you can press the touch area for 5 seconds， when it turn on， the blue led will ligh on 3 times.（If the earphone can not power on automatic， please press the touch area for 5 second）
2.Power off They will power off when you put the earphone into the charging box also you can long press it for 5 seconds to turn it off. The red led linght wil on three times when it tum off（ if there is no connection. it will turn off after three minutes） 3. Bluetooth pairing After the earphone turn on， it will pair automatic， the led light on the left earphone will on，then connect it with your phone. The led light will off after it connected。Open phone device and find"TW40" bluetooth name to connect pairing. it will pairing successful within
3 seconds， and then the earphone LED will tum off.You just need open phone bluetooth and earphone， it will auto pairing when you use the ame phone device. If it is different phone device， you need refer pairing step.
4. charging step the charging box of LED light will on， after charging full. the four light will on.When earphone charging in the charing box， the led will light in red,when it charged full，the led light will off.
5. call touch the earphone for 2 seconds， it will active Siri voice assistance （this for lOS phone. for ndroid phone， touch it for 2 seconds， it will call the last call phone number in your memo）and both side work during phone call.When there is incoming call， there will voice and say the phone number， click one time for one of the two earphone to receive the call. Click two times to hang up the incoming call.
6.how to use the touch function One click:play/pause， receive/hang up in coming call. double click:back mucis/left earphone， next music/ nght earphone. Click three times:volume down /left earphone， next mus c/right arphone. Click five times:change the voice between English and Chinese. Long press 2 seconds:active Siros phone， call the last phone call for Android phone.
Return or exchange within 30 days from the delivered date.
1. Items received within 30 days from the delivered date.
2. Items received unused, undamaged and in original package.
3. Return shipping fee is paid by buyer.