viber/text/whatsapp-9884081266 1, excellent quality, metal body, with independent intellectual property rights and brand. 2, it has better sound quality and bass function. 3, the battery is durable, fast charging time. 4, strong compatibility, compatible with all types of mobile phones, tablet PCs, desktop computers. 5, Bluetooth connection is quick and the connection distance is far. 6, easy to carry, stylish appearance. Notice 1,Audio A103 will shut down automatically without any operates in 5