Features: High-Quality Material: These wine glasses with wireless speakers are made of high-quality stainless steel material, which is wear-resistant and durable, can be used for a long time, and is harm-less to your health. Good sound effect: The Bluetooth-compatible speaker is equipped with high-quality speakers, allowing you to enjoy great music. Multifunctional water cup: This water cup is not only equipped with a detachable wireless speaker, but its lid is also designed with a bottle opener for easy use. Suitable for a variety of places: suitable for leisure, entertainment, office, indoor, outdoor, hiking and other places. EXCELLENT GIFT: This is a meaningful gift for family or friends, such as housewarming gift, Valentine39;s Day gift, Christmas gift, birthday gift. Notice: *Actual color may be slightly different from the image due to different light effect *Please allow 1-3cm deviation due to manual measurement Description: Material: Inner tank: 304 stainless steel, outer shell: 201 stainless steel Size: Top width: 9.5cm, bottom width: 6.6cm, height: 18cm Capacity: 16oz Battery capacity: 500 mAh Functions: Cup, Bluetooth-compatible speaker, bottle opener Package List: 1 x 16oz Bluetooth-compatible Speaker Beer Mug