inputs.text: yuanj portable bluetooth speaker backup battery 4000mah power bank 2w speaker 35mm aux input port charging music - unit combination external battery charger speaker nice potential initially frustrated poor instructions included retail box specifically no information guide charge internal 4000mah battery instructions need total redo figured use device liked itbattery functionafter unpacking device find supplied multicable kept area tray inside box cable standard male usb one end splits two pigtail ends one pigtail male microusb male 35mm auxplug standard usb end favorite charging device wall charger usb charging station laptop usb port etc used samsung wall charger pull endcap batteryspeaker unit 1 turn unit 2 access units portsonce endcap pulled plug cables 35mm aux pigtail end corresponding port battery seem two 35mm aux ports end battery one dummy real active one not marked able tell pick proper one devices led light light voice may say bluetooth aux connect voice seems randomly say things timetotime stick 35mm aux jack dummy hole nothing happens allthe unit three small led lights inform remaining charge battery upon initial connection one light lit signifying unit may 33 precharged factory next six seven hours battery progressed full charge seems like fairly long time give 21a chargers output reading indicated input flow rate unit 08a max regardless power sources capability thats fairly slow even rate feel little heat built near connection end charging going ononce charged using battery not difficult using either supplied cable cable come device recommended connect device batterys usb port charge device needed storage capacity battery 4000mah good charge another partial boost not multiple charges without rechargingthe charging times experienced get 1a wall chargers average rate 13 percent per minute equates 1 every 25 three minutes 20 25 per hour batteries phones 2200 mah 2400mah capacity makes sense given batterys 1a rated outputspeaker functionfor size speaker actually punches decent sounds fairly convenient portable 4 78 inches long 125 inches roughly diameter 48 ounces per postal scale backup battery speaker combo unit easy carry purse jacket pocket backpackthe specifications paltry user guide notes speaker \\zw\\ power assume meant 2w puts good volume small sizeyou crank fairly loud without significant distortion laid flat solid foundation like counter table top provides decent bass good mid treble no controls volume next track skip etc available unit control must come sending device not problem us speaker actually responded well equalizer application phoneyou send music device bluetooth direct wire view 35mm port port used charge batterybluetoothpulling batteryspeakers endcap putting back place needed order activate speakers bluetooth search blue led light flashes pairing phone quick troublefree found range good better many similar devices testedtypically phone paired speaker within three 12 feet speaker relatively good line sight two devices bt sound production not bad mentioned responded nicely equalizer app35mm auxthis units speaker also plays nicely 35mm aux connection offers interesting feature endcap two male 35mm aux connectors built used process plug one 35mm headphone port sending device like htc droid dna active 35mm aux port unitthe sound produced 35mm aux cable connection really not bad situating connection backside sending device battery becomes lengthwise stand works well especially decided watch netflix movie phonethe opportunity not transmission devices configured way endcap used make 35mm aux connection older mp3 player thick would nice manufacturer included 35mm aux cable male jacks ends several already worked fine speaker amazon listings \\package contents\\ section not unit includes \\1xthe 35 mm audio line\\ not receive separate 35mm cable portion attached single multicable included unitsorry length review turned way many ins outs pluses minusesno mention warranty could find issue occurs within reasonable period time would return update review let know issue resolution handled receive device gratis seller put use objectively find well performed statements reflect testingif looking combination 4000mah power bank 2w speaker stand size style price capacity use described would recommend giving unit try based experience little patience finerecommendedgo itspeakers endcap putting back place needed order activate speakers bluetooth search blue led light flashes pairing phone quick troublefree found range good better many similar devices testedtypically phone paired speaker within three 12 feet speaker relatively good line sight two devices bt sound production not bad mentioned responded nicely equalizer app35mm auxthis units speaker also plays nicely 35mm aux connection offers interesting feature endcap two male 35mm aux connectors built used process plug one 35mm headphone port sending device like htc droid dna active 35mm aux port unitthe sound produced 35mm aux cable connection really not bad situating connection backside sending device battery becomes lengthwise stand works well especially decided watch netflix movie phonethe opportunity not transmission devices configured way endcap used make 35mm aux connection older mp3 player thick would nice manufacturer included 35mm aux cable male jacks ends several already worked fine speaker amazon listings \\package contents\\ section not unit includes \\1xthe 35 mm audio line\\ not receive separate 35mm cable portion attached single multicable included unitsorry length review turned way many ins outs pluses minusesno mention warranty could find issue occurs within reasonable period time would return update review let know issue resolution handled receive device gratis seller put use objectively find well performed statements reflect testingif looking combination 4000mah power bank 2w speaker stand size style price capacity use described would recommend giving unit try based experience little patience finerecommendedgo