Product specificationProduct modelE 10 version V5.1 Battery specificationearphone 3.7v Chargingbin3.7v SupportedmodeHFP/HSP/A2DP/AVRCP Sensitivity105dB3dBS.P.Lat1KHz Signal distance10m(inan ideal environment without any largeobstacles ) Playing timeabout 2.5 hours Talktimeapproximately 3 hours Standbytimeabout 80 hours Charging timecharge the charging war c house for about 1.5 hoursand charge the headset for about l hour Charging times for the headsetabout 15 times Specifications: Functional instructions 1.BootTake the heads ct out of the charging bin and start it automaticallyor long press the left and right multi - function button of the headsetfor 3seconds. 2. ShutdownPut the headset into the charging bin and turnoff automatically . 3.Boot backWhen the pairing is successful the bluetooth headset will firstenter the state of reconnect when the second time is started andautomatically reconnect the connected phone . 4.Play/pauseIn standby state click the left or right earphone multifunctionbutton to play music directly while click the left or right earphonemultifunction button to pause playing . 5. Switch songsPress the left earphone muti_function button for 2 seconds to playmusic and then press the right earphone muti_function button for2secondstoplaymusic 6. Volume up and downDouble - click the left earphone multifunction button to increasethe volumes tepbystepanddouble- click the right earphonemultifunction button to decrease the volume step by step 7. Answer incoming callsWhen the mobile phonecalls click the left or right earphonemultifunction button can answer the phone 8.CallhangupWhen talking on the mobilephone youcanhangup the phone byclicking the left or right earphone multifunction button 9.Callr electionWhen the phonecalls long press the left and right earphonemultifunction button for 2 seconds to reject the call 10.RedialWhen you are on standby or playing music you can make thelast call in your phone record by three clicks of the left earphonemultifunction button . 11. Start voice assistantThree click son the right earphone multifunction button canactivate apple 'sSirior Google voice assistant for voice controlof the phone operation . 12.Low battery alertWhen the battery of bluetooth headset islow play the warningsound of low battery at an interval of 30 seconds until the headsetis low battery and turns of Package Included: 1*charging cable 1*charging compartment 2*headphone 1*User manual