The Darkblue® and N.A.V® Bluetooth speaker is custom designed and engineered by Darkblue Technology Group, a high technology trusted brand , to delivery the military and high technology critical features products to the Global We(Shenlan Tech) No authorize other sellers to sell on Amazon, it should fake if they sell. What make it the best as the amazing Bluetooth speaker? AMAZING HIFI MUSIC WITH ZINC ALLOY TECHNOLOGY: 1,Leading technology the built aviation grade oxide zinc alloy bass reflex sound chamber, the built zinc alloy sound chamber to boost One-way heavy bass reflex technology. World class original high quality decoder chips CPU and imported speaker to enhance the bass amazing sound. 2,with 16 core 40 mm horn, both super bass and Super tweeter owing it with advanced chips and CPU integrated bass reflex Technology. 3,And support mobile music APE , PLAC lossless format music and support TF Card, MP3,WMA,WAV..all kinds of format music. Support card reader and PC audio playback. MASTER DESIGN and ULTRA PORTABLE 1,BETTER DESIGN SOLUATION: High Quality under World-Class level design for the mechanical and whole solution for Product outward appearance modeling and high quality materials. 2,ULTRA PORTABLE: Ultra light texture with net weight 115g, easily to hand carry for outdoor and portable with, it Suitable for outdoor sports, cycling, skiing, camping, climbing, dance, party, picnic, bath, etc. GREAT QUALITY WITH BEST RELIABILITY 1,Each product, from products design to the mass products follow the whole Global world class level IPD (integrated products Development )procedure, including lab reliability test and quality PPM test from new products trail run , production process and finish goods end of life test.
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