Winfly Development Co., Ltd. is a professional consumer electronic product manufacturer in China , Main products are including MP3 Sunglasses, Bluetooth Sunglasses , DVR Sunglasses , Car FM Transmitter , Bluetooth Car Kit , Cell Phone FM Transmitter, Power Bank , Bluetooth Dongles . All our products undergo several stages of strict quality control and are 100% inspected . Winfly is not only committed to superior product quality but also to excellent customer service . We always put customers' needs first . Now, our products are exported to customers throughout the world including Europe, the USA, Asia and Australia .You can be assured that doing business with Winfly will exceed your expectations. We look forward to building long-term business relationship with you .