The Oraimo Shark 4 OEB-E30D Neckband Wireless Earphone offers a premium audio experience with its advanced features and stylish design. With the HavyBass Dual EQ, you can easily switch between Normal Mode and HavyBass Mode to tailor the sound according to your preference. The 2nd generation HavyBass algorithm delivers unrivaled deep bass, providing an extraordinary thumping bass experience like never before. The Shark 4 has a remarkable 20-hour playback time, so you can listen to music nonstop. Accordingly, a full charge will allow you to listen to about 300 songs. As an added bonus, the Quick Charge feature makes sure that you can quickly recharge your earphones and resume listening to your favorite music. Take part in the low-latency Game Mode, which offers improved audio and video synchronization for a fluid and immersive gaming experience. With the dual-device connection feature, you can connect two devices at once and make sure you never miss any calls or notifications while listening to music. Due to its inner sweat-resistant nano-coating and IPX5 waterproof rating, the Shark 4 is made to withstand moisture and perspiration. This gives you comfort and durability while making it appropriate for use during exercise or in wet conditions.