Bold sound, unplugged. On-ear headphones are all about all-day battery and comfort, and riff 2 is no exception. It delivers the goods affordably with 34 hours of battery life, backup aux cable and the peace of mind that comes with tile® finding technology. Headphone features audio drivers: 40mm frequency response: 20 – 20,000 hz cable type: wireless bluetooth® version: 5. 2 microphone: yes on-ear controls: yes charging port: usb, micro-usb, lightning battery life: 34 hours in total foldable & adjustable headband: yes headphone return policy: no refunds or exchanges allowed on open products.