The first time you get the TWS450 true wireless headphones, the earbuds are in the charging case, you need to :(1) Remove the plastic firm on charging contact point under the earbuds and get the earbuds back in the case charging for a while(2) Take out the earbuds from the charging case, then they will automatically turn on and available for a connection(3) Connect the "TWS450" to your phone via bluetooth settings menuAfter the first connection completed, the earbuds will automatically turn on and connect your smart phone when removed from the case, automatically turn off and charge when put back in the case.Note:(1) Please keep your headphones charged when in low battery life to achieve better Bluetooth connection and protect your battery.(2) Please choose suitable ear tips and wear your headphone tightly when you are running or cycling, it will help you reduce the annoying wind noise.(3) Only the Right Earbuds can use the mono modeSpecifications:Bluetooth Standard: V5.0Wireless Profile: HFP, HSP, A2DP, AVRCPOperating Range: 10m (33ft)Charging Voltage: DC 5V 1AStandby Time: 160hrsTalk /Playing Time: 2~3hrsCharging Time(headset): 1.5hrsCharging Time(charging case): 2.5hrsBattery Capacity(headset): 50mAh/3.7VBattery Capacity(charging case): 500mAh/3.7VPackage Contents:Earphone x 2Charging Case x 1Regular Ear Tips(S, M, L, XL) 4*PairsRubber Ear Pieces x 2 Pairs Charging Cable x 1Use Manual x 1
