iRiver Bluetooth Wireless Open Air Conduction Earphones IBO-OPENAIR3, Bluetooth 5.3 earbuds, IPX5 waterproof, ENC high-sensitivity microphone, high-quality sound dynamic driver

- Sound is transmitted to the eardrum through a directional speaker without blocking the ears. Unlike bone conduction, there is no feeling of discomfort due to vibration, and stability is improve...