Factory modelJH-9106 Item Wireless bluetooth in-ear earphoneFunctions Listening quality stereo music. Answering call or redialing last call. Can be used as MP3 player by pre-made built-in MP3 (4G or more) inside, optional.Summary Features1Touch control. Next track. Answer/end/reject call.2Convenient one-tap connectivity, getting rid of complex pairing.3Multi-functions design, either single earbud for business talks or two earbuds for listening high quality stereo music under backgrounds like sports and leisure places, all are excellent.4Long quality-battery life, 5 hours of listening time or 30 days stand-by.5450mAh charging case can provide big capacity charging for earbuds.6High water-proof (IPX5) and special design of earbuds for sports use.7TWS (True wireless stereo) technology, presenting real lossless stereo misic.8Magnetic holder for earbud charging, much easier in handling for charging.9Aircraft aluminum alloy carging case gives people feeling of luxury.10Built-in MP3 as another choice of music source, optional.Information about earbuds1Bluetooth version: 5.02Bluetooth rang:10 M 3TWS (True wireless stereo) technology, compatible with lossless audio formats.4Frequency response: 20HZ-20KHZ5Waterproof rating: IPX56Ergonomic design of silicone ear tips.7Automatic adaptive to corresponding sound tracks for both earbuds.8Operation by: Simply touch9Support for next song.10Phone call via two earbuds.11Automatic shutdown / automatic boot.12Reminder of battery near to running out..13 Earbud battery:50mAh. Lithium polymer battery.14Earbud battery maximum working hours for call or audio play: 5-6 hours15 16 Information about charging case 1Charging case battery: 450mAh. Lithium polymer battery. 2Aluminum alloy charging case3Charging case battery capacity enough for 5 times of charging for earbuds4USB interface charging5Magnetic holder for earbud charging (easy handling)6Input: DC 5v7 Surface finish (Standard)1Aluminum alloy anodizing 2Black Surface finish (More choice)1Silver2Colors optional3 4 5 Information about packagingProduct dimensionEarbud:L26*H18*W23mm Charging case:L73*W43*H21mmIndividual box dimensionL91*H40*W74Outer carton dimension44*39.5*24.8CMpcs/carton100PcsN.W.(Kg)/carton13.8kgG.W.(Kg)/carton14.6kg