This speaker is mini in size, weighs only 145 grams. It can be easily put into a trouser pocket or the side pocket of a canvas bag, making it very easy to carry. It is an excellent gift for outdoor enthusiasts. Experience superior stereo sound quality with this solid wood Bluetooth speaker. The natural wood enhances sound resonance, providing a richer audio experience. Materials: Wood Size: 2.4"× 2.4"× 2" Colors: Black, Grey, White Function: Bluetooth/hands-free calling/TF Configure the TF card slot to directly play music in the TF card When it is connected to your smartphone in the bathroom, office or at home, you can easily receive calls through this bluetooth speaker. High capacity rechargeable 300mAh battery. Could play 3 hours with medium volume. Craftsmanship: Featuring precision laser engraving, these speakers can be customized with logos, names, dates, or unique patterns. The engraving creates sharp, long - lasting markings that won't fade easily.  How to Personalize: Technique: Laser Engraved. Customize any design with any name, date, available template design or custom logo, your own image.  ENGRAVING INFORMATION： *Please kindly leave the custom information in the personalization box.  If have any problems,please contact us at anytime,I will reply as soon as possible.