Welcome to our store！</br> 1、32.8ft WIRELESS RANGE: The Bluetooth hat utilizes wireless bluetooth technology for faster and easier pairing with any bluetooth enabled smartphone or tablet device, 32.8ft wireless range. 2、3 BUTTONS: The simple panel of the Bluetooth hat displays 3 prompt buttons for basic control functions by pausing/playing music, and the ability to answer calls, skip songs, and control volume. 3、ADJUSTABLE: The head size of the hat is 20.5 to 25.2 inch (about 52.1 to 64.0 cm), adjustable according to your head circumference. 4、STEREO AUDIO OUTPUT: The Speaker hat has excellent stereo audio output, allowing you to enjoy your music at any time, for up to 8 hours of playing music or talking on the phone, great for outdoor sports. 5、APPLICATION SCENARIO: The microphone allows you not to miss any incoming calls, perfect for fitness, fishing, running, skateboarding, hiking, camping, skiing and other outdoor activities. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Hat with Bluetooth Speaker Material: Acrylic, Plastic, Electronic Components Battery Type: Lithium Battery (Ship with Inbuilt Battery) Battery Capacity: 180mah Power Aupply: USB Interface Bluetooth Version: V5.0 Transmission Range: Approx. 10meters / 32.8ft Charging Time: 2H Endurance: 8H Color: Black <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Hat&nbsp;with&nbsp;Bluetooth&nbsp;Speaker (Ship with Inbuilt Battery) 1 x Charging Cable 1 x User Manual Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>