Crafted from high-quality aluminum alloy, Grenu Bluetooth Speaker has a lightweight and compact design for easily carry around. With Bluetooth 5.3 technology, it provides clear sound and the ability to form stereo channels through TWS pairing with another speaker. Built-in 300mAh rechargeable battery with a rated power of 3W, and the frequency response range of 30Hz-15kHz. The handsfree call function allows users to answer calls with just one press. Comes with attached lanyard adds convenience for outdoor activities. Customize it with your logo for brand promotion. Ideal for picnic, party, or casual indoor gathering.