Brand: Bluedio Model No.: I4 LED Indicator Product Dimensions: 6.2 x 1.7 x 2.3 cm Special features: Clip-on Device interface - primary: Buttons Colour: Black Phone Talk Time: 3 Hours Phone Standby Time (with data): 100 Hours Bluedio is a pioneer in portable audio device, providing solutions to professional audio and wireless communication. Bluedio always strives for perfection, fashion and simplicity, focusing on revolutionary innovations. So far, Bluedio has owned over 30 patents, highly praised by consumers over 34 countries. Music Support Stereo Support music streaming LED Indicator Brand Bluedio SKU BL128EL1KYKAKNAFAMZ-173833 connector_1 3.5MM Wearing type Over the Ear wireless_connectivity Bluetooth Model i4