Enhanced Audio Experience: This portable headphone amplifier features a 3.5mm audio jack for both input and output, ensuring compatibility with a wide range of devices including smartphones, tablets, laptops, and gaming consoles. Its compact design makes it easy to carry for on-the-go audio enhancement. Optimal Performance with GAIN Switch: Equipped with a high/low gain switch, this amplifier allows you to adjust the output to match the performance of your headphones perfectly. Whether you're using high-impedance studio headphones or more casual listening devices, you can optimize the sound to your preference. Long-Lasting Battery Life: With a 1000mAh battery, this amplifier can provide up to 15 hours of continuous audio enhancement. The device is conveniently charged via a Micro-USB port, making it easy to recharge on the go and ensuring you never miss a beat. Wide Compatibility: The amplifier supports a load impedance range of 16-150Ω, making it suitable for a variety of headphones from brands like for SONY, for Sennheiser, and for beyerdynamic. It's also compatible with devices such as the for Nintendo Switch, for PS4, for PS5, and for various mobile phones, ensuring versatile use across your electronic devices. Color: Black Material: Metal+Plastic Package Contents: 1 * Amplifier 1 * Cable