Last number redialing After connecting with your phone, double click the power button to redial your latest calling record.Pairing tips: --First Time to pair: 1.long press the power button for 5 seconds until red&blue light flashes alternatively and you can hear "power on, pairing " to enter the pairing model; 2.start your Bluetooth function on the phone; 3.search for the device name"MXB**", touch it to connect with earphone,only blue light will flashes and you can hear"connected ", device connected successfully. --Pairing it second time: 1.following the above step 1 to enter the pairing model; 2.start your Bluetooth function on the phone; 3.find "MXB**" in paired device history record list and touch it to connect successfully. Warm tips for users --Charging the headset before first usage for 2 hours,charge it more than 2 hours will hurt the battery. --Charge connector: PC/laptop,Support 5V 500mah-1A charger only. --Warning: NOT USE Power bank.The 5V 2A charger, over voltage! earphone can't be charged normally. Specifications: Bluetooth version: V4.1+EDR Bluetooth Profiles Supported: HSP, HFP, A2DP, AVRCP Operation Range: Up to 10 Meters Battery: Built-in Rechargeable 3.7V/60mAH Lithium Battery Charge Voltage: DC4.75-5.25V Charging Time: Approx. 2 hours Playing Time: Up to 3.5 hours Talk Time : Up to 5 hours Standby Time : Up to 180 hours Package Include: 1* Bluetooth Headset 1* Charging Cable 2 pairs of Silicone ear caps 1* Users manualContact with Us https://www.amazon.com/ss/help/contact/? marketplaceID=ATVPDKIKX0DER&sellerID=A1XUYXC6ZKF3ZB
