Headphones made with natural stone extracts combined with durable ABS. Featuring Bluetooth® 5.3 connectivity and a built-in 30 mAh lithium battery in each earpiece. Ergonomic design, with touch control button on the earbud and hands-free function. Charging base with 250 mAh capacity and LED charge status indicator, with Type-C charging cable included. Presented in an attractive kraft design box. Instruction manual available in Spanish and English. Manufactured with natural stone extracts, which helps to reduce the use of plastics, as well as providing a smooth and durable finish. The capacities stated for all our power banks are genuine, incorporating only Grade A, non-recycled batteries, with a lifespan of at least 500 charge cycles and in accordance with CE standards. Furthermore, they are manufactured in accordance with RoHS standards and comply with the following safety requirements: Overcharge protection system for the power bank. Total discharge protection system to extend the lifespan of the portable charger. Locking system to prevent short circuits. Constant charge transfer system, according to the capacity of the target device.