To unlock more functions, please upgrade to system iOS 16. seller of this product is not affliated with,sponsored, licensed or endorsedbyany branded entity or service.podsWe understand that a very small number of users may experience aslightdifference in volume between left and right ear. This can usuallyberesolved with a simple setup or operation and is not a hardware failure oftheheadset,Please folow these steps to troubleshootStep 1: Check fit Makesure that left and right earphones are worn tighthand deep into ear canal, Tooshallow a fit or an incomplete seal will resulin sound leakage and affectlistening balance. Try gently rotating oradjusting angle of headphones to findmost snug and comfortablewearing position. Step 2: Check your phone/devicesound balance settings, soundbalance settings are a common cause. Pleasego to your phone/devicesettings to troubleshoot:General Guide:i0S ExampleSettings >Accessibility > Audio/Visual > Check that left andright channelbalance sliders are in center position. Android example:Settings >Accessibility>Listening > Check Left andRight Channel Balance or Mono audio settings(make sure Mono is turnedoff). Step 3:Swap Left and Right EarThis is a criticastep in determining source of problem! Swap theheadphones originally worn inleft ear to right ear, and headphonesoriginally wom in right ear to left ear. listenagain: 'ow sound' side is now louder. This means that there is noproblem withhardware of headphones themselves, and problemmay lie in difference inhearing between your ears, way you werewearing them before, or devicesettings.Please return to steps and 2 todouble check. 'small sound' side isstill small after switching ears: This meansthat there may be an abnormality inthat headphone unit. Please proceed tothe next step. Step 4:Reset headsetand re-pairAtemporary software glitch may also cause this problem. Pleasetry:Put theheadphones back into charging, close cover and wait morethan 15seconds. Open lid and long press setup button on back of charging(pleaserefer to instruction manual illustration exact location of thebutton) about 10-15seconds until status indicator blinks in a specificway (indicating that reset issuccessful). Forget this device in your device's settings. Bring headset close todevice and follow initial pairing process toreconnectTip:Please volumebalance again after resettingStep 5:Cleaning Headphone Sound Out HolesDescription: Earwax or foreignobjects clogging sound out holes maycause sound to become mufled ordistorted. Please use a dry, soft brush (e. g.eyeglass cloth, small makeupbrush) to gently clean sound holes in themetal mesh of headphones. Do notuse objects or liquids forcleaning!Troubleshooting Results Guidelines:Aftercompleting above steps, if problem is resolved, you can continueto enjoy yourmusic! sound from a specific headphone unit is consistently and noticeablylowafter completing all of above steps (especially third step of swaptest),ahardware proplem mav oe involvec. Hardware problem handling:Pleaseprepare your proof of purchase and contact our official customerservicechannel:Provide customer service contact information (online customer servicelinkemail. phone number, etc. ).Our customer service will be happy to provideyou with further supportand handling options.Cartoon