These high-quality Bluetooth headphones offer an impressive sound experience thanks to their powerful 40mm speakers. With Bluetooth 5.1, you can enjoy a stable, wireless connection to your devices. The headphones feature a built-in microphone for clear conversations and a convenient 3.5mm AUX input for wired connections. With a battery life of up to 6 hours and a short charge time of only 2 hours, they are ideal for everyday use. The 200mAh lithium-ion battery can be conveniently charged via USB. The headphones impress with a frequency range of 20 Hz to 20 kHz and an impedance of 32 ohms for detailed sound. Measuring 17 x 19 x 8 cm and an impressive standby time of 600 hours, these headphones are the perfect companion for music enjoyment on the go.