Bluetooth® speaker made of a combination of natual limestone and cork. Speaker output is 3 W and it contains a 500 mAh lithium polymer battery. Includes a Micro-USB charging cable. Bluetooth® 5.0 working range is 10 metres. This speaker allows up to 4 hours of usage at 70% volume on a single charge. Supplied in a 100% FSC certified gift box and comes with a FSC manual.