Digital amplifier technology, 10W high power audio output selection of efficient magnetic NdFeB speaker, lighter weight, better sound quality, greater voice 

LOW-THD adaptive technology used in high power output does not produce significant sound distortion 

Built-in high-capacity lithium-ion battery durability is rechargeable and energy-saving

Built-in MCU intelligent charging management system, with battery protection, so that the battery is in a safe and reliable mode; charge for just 4-6 hours, working up to 20 hours or more 

With AUX audio signal input can be used as a portable speaker 

Made of ABS engineering materials molding, rugged wear product plus a fashionable design supports shoulder hanging, waist hanging and a variety wearing styles, easier to use