Features: 100%?brand?new?and?high?quality. Can?be?paired?to?any?bluetooth?enabled?devices， such?as?mobile?phone，?laptops，?speaker?and Bluetooth?audio?transmitter. Make?music?in?the?audio?equipment?play?by?wireless Instructions?for?use: receive?the?speaker?into?usb?interface，?and?the?other?end?connected?through?the?3.5mm?audio?cable?to?the?receiver?and?the?LINE-IN?interface?of?speakers Open?the?Bluetooth-enabled?mobile?phone?(or?computer)，?and?search?the?surrounding?Bluetooth?devices?to?find?a?device?called?dmzmusic?and?then?its'?pairing?code?is?0000，?after?the?pairing?is?successful，?the?led?light?will?slow?down Then?you?can?select?the?music?via?Bluetooth?from?a?cell?phone?or?computer，?a?great?music?will?play?from?speaker Specifications: Bluetooth?Standard:?Bluetooth?V2.1+EDR，?support?A2DP?V1.2 Power?supply:?5V?USB Output:?3.5mm?Audio?interface Distance:?about?10m Transmission?rate:?3Mbps Shell?Color:?White Size:?55*20*10mm Net?Weight:?27g Package?Includes: 1?x?USB?Bluetooth?Audio?Music?Receiver 1?x?3.5mm?Audio?Cable