Introducing the S-520 Ear Hook headphones, designed to elevate your sports and fitness experience. Available in Black, White, Red, Blue, and Coffee, these lightweight headphones weigh approximately 33g, ensuring comfort during long workouts. Equipped with a 3.5mm plug, 1.2m line length, and dynamic voice principle, they deliver crisp audio across the 20-20000Hz frequency range. Whether you're hitting the gym or going for a run, these headphones, with their 16Ω impedance and 123db sensitivity, promise an immersive sound experience.