Factory modelJH-9102 Item Wireless bluetooth in-ear earphoneFunctions Listening quality stereo music. Answering call or redialing last call. Summary Features1Touch control. Next track, answer/end/reject call.2Convenient one-tap connectivity, getting rid of complex pairing.3True wireless stereo. Compatible with lossless audio formats.4Long battery life, five hours of listening time.5500mAh charging case can provide 10 hours of earbuds battery life.6USB charging wire.7Wireless charging function optional.8 Information about earbuds1Bluetooth version: 5.02Bluetooth rang:10 M3TWS (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.12 13 14Reminder of battery near to running out..15Earbud battery:50mAh. Lithium polymer battery. 16Earbud battery maximum working hours for call or audio play: 5-6 hoursInformation about charging case 1Charging case battery:500mAh. Lithium polymer battery. 2One button on/off3Charging case's capacity enough for 5 times of charging for earbuds4USB interface charging5Magnetic holder for earbud charging (easy handling)6Input: 5 v7Wireless charging function for choice. Surface finish (Standard)1Varnish UV2Dull polish Surface finish (More choice)1Black2Royal blue3Colors can be customized.4 5 Information about packagingProduct dimensionEarbud:L26*H18*W23mm Charging case:L60*W42.6*H48mmIndividual box dimension90*90*68MMOuter carton dimension47*25.5*35CMPcs/carton60PcsN.W.(Kg)/carton8.2kgG.W.(Kg)/carton9kg