Conceptronic BRENDAN01B cuffia e auricolare Wireless In-ear Musica e Chiamate Bluetooth Nero (Conceptronic BRENDAN01B Bluetooth In-ear Headphones with DSP Noise Reduction - Bluetooth 5.0 wireless connectivity; 110mAh rechargeable battery built-in. Sustains 8hr average operation; Built-in microphone for hands-free voice calls; IPX4 water resistance rating protects from rain and sweat while exercising; Fast charging speed for instant usage; Ergonomic design and durable silicone neckband; DSP noise reduction eliminates outside interference [2Years warranty])