Shenzhen YRD Industry Co. Ltd has launched YRD-01, a sunglasses with built-in MP3 and Bluetooth. Compliant with Bluetooth 1.1 class 2, the device has a wireless connection range of 10m and an operation frequency range of 2. 40GHz to 2. 48GHz. Other features include a talk time of 4hr, readiness time of 120hr, stereo output mode, and a 128MB to 1GB memory flash. The device is powered by a built-in Lithium ion polymer battery, and comes in different colors.