Bluetooth, wireless earbud with inline MIC to take/make calls in a flexible, durable earfin style. Earfin style provides a secure, comfortable fit ideal for long wear. Tangle-free flatwire cord. Wireless design with up to seven hours of battery life from a single charge. Earpiece Type: Earbud; Earpiece Material: Rubber; Microphone: Yes; Headset Features: Bluetooth; Wireless.