Andoer Bluetooth Music Sun Hat Headphone Popular Bluetooth 4.0 + EDR Stereo Music Hat Earphone Topee Sport Peaked Cap & Bluetooth Headset 2-in-1 Supports Hands-free Talking for Smart Phones Tablet PC 2 in 1 Multifunctional: Sun Hat + Wireless Bluetooth 4.0 Stereo Headset. The Bluetooth Music Sun Hat provides a fun, cool way to make and take calls on the go, letting you becoming fashionable in the crowd. Uses the renowned Stereo Bluetooth CSR8635 / 4.0 chip to ensure high-fidelity sound quality and stable performance. Simply connect the Bluetooth Music Hat with smart phone, Tablet PC and other Bluetooth-enabled devices via Wireless Bluetooth Technology. Built-in high-performance Microphone and Speaker, offering you HIFI sound effect(Perfect Sound Quality and clear communication effect.)