Operating since 2006Huizhou Great-Will Industrial Co. Ltd is a professional USB speaker/2.0 speaker/2.1 speaker system/Bluetooth speaker and Bluetooth headset manufacturer, established in 2006. As one of the leading OEM/ODM manufacturers of smart digital products, we export our products to clients in 20 countries.Providing OEM ServiceWe provide OEM service. We guarantee one-year warranty for genuine quality defects. So, we have long-term or regular suppliers of well-known brands.Benefit from our Advantages 1.Critical quality control 1.All casing must be sorted before in production line 2.Controller and crystal ocsillator must be inspected and tested by AQL level before incoming 3.Battery must be fully tested before mounting 4. Incoming material checking 2. Online inspection 1.Online inspection to the printing and packaging 2. Full inspection of recharging, discharging and aging testing to the battery cells 3. Final inspection/pre-shipment inspection Casing that breaks, failed to mount and corrupted contents will be picked, bad battery will be sorted and returned to the suppliers Besides running these benchmarking tests, to make sure the products longevity, durability and manufacturers reputation, we have a record on different vendors writing down their fail percentages and spotted the excellent suppliers. Good service: On production, we take photos of each procedure of production and report to you, thus youll control your goods even overseas. On shipment, we send screenshot to report the test report, we send photos of carton package, weight measurement to show you clearly about the goods condition. After shipment, we track the courier all the way till its safe delivery. Efficient feedback: for any question or need, youll be replied within 24 hours Win-win transaction: we have professional customer representatives dedicated to make each potential client experience an enjoyable buying trip.