Your satisfaction is our final goal. 5 stars positives feeback would be appreciated. hope you could introduce our store to your friends. Please don't leave any negative feedback or open dispute without communication, thank you. Any negative or dispute will hurt both sides, and won't let the problem really be solved. If you have any questions , please feel free to contact us , we will try our best to help, Thanks. Package Listing: 1x Speaker 1x Audio Cable 1x USB Cable 1x User Manual Product specifications : V2.1 Working Distance:10M Voltage:DC 5V Battery Charge Time:2H Loudspeaker:3W S/N Ratio:>=75db Frequency Response:120HZ-18KHZ Dimension:D=80MM New weight:250g Product Feature: 1.international advanced chip and circuit design techniques,support all device; 2.with FM function,can search radio station broadcast automatically 3.with HI-FI speaker,to sure the clear and bright sound quality 4.Support TF Card 5.dual power suppor by Mini USB charging/BL-5C lion battery,smart and 6.play music after repairing with device for example mobile/MID/TV,the working distance is within 15M. 7.Built-in microphone for hands-free phone call100% Hot and High QualityWe will carefully test every item before shipment.Notes:Due to manual measurements, please allow an error of 1-3 cm.Due to problems between different monitors, the image may not reflect the actual color, please refer to the actual product.If there is a problem with the product, please contact us.Thank you for understanding.FEEDBACK:1.If you are satisfied with our products and services,please leave your postive feedback and 5 stars.2.If you don't satisfied our products,pls contact us before you leave negative feedback.we guarantee we will 100% slove any problem for you and make you satisfied.SERVICE:1.We care about our valued customers,and will always try to help you,hope to establish long business with you.2.Please contact us by Rehmie.com Customer service before leaving any negative feedback or opening and dispute on the site. Please give us the opportunity to resolve any problem.Thank you.