The CoolBox COO-AUB-40WH Bluetooth headphones are wireless devices designed to offer a comfortable and versatile sound experience, ideal for everyday use. They feature advanced Bluetooth 5.3 technology that provides a stable and efficient connection with an effective range of up to 10 meters, allowing freedom of movement without quality loss. Their frequency response ranges from 20 Hz to 20 kHz, ensuring a wide and balanced sound spectrum, while their impedance of 32 ohms combined with a sensitivity of 110 +/- 3 dB guarantees adequate volume with great clarity. They stand out especially for their active noise cancellation (ANC) of up to 20 dB, which effectively reduces ambient noise for a more immersive listening experience. Equipped with touch controls, they facilitate managing functions such as play, pause, power on, volume adjustment with track skip or rewind, and ANC activation, optimizing usability. Regarding power, they include a 400 mAh internal lithium battery offering notable autonomy and an approximate charging time of 1.5 hours via USB-C port. These headphones also allow a wired connection through the 3.5 mm jack for those who prefer to use them without Bluetooth, although the cable is not included. Their speakers have a 40 mm diameter and a white plastic design that provides lightness, with a total weight of 175 grams ensuring comfort during extended use. The package includes the headphones, a charging cable, and a user manual. In summary, the CoolBox COO-AUB-40WH combine updated technology, good acoustic performance, and practical features, positioning themselves as a balanced option for users needing wireless headphones with sound isolation and multiple connectivity options.
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