Chocolate watchbands are made of soft silicone (product lists Material: Silicone).

Product descriptions say the bands are flexible and adjustable to your wrist; made of soft silicone, they are lightweight and comfortable for everyday wear.

No — descriptions note that color appearance may vary slightly between devices and monitors, which can affect perceived vibrancy.

They are described as durable and made from soft silicone; product text emphasizes quality materials intended for long-lasting everyday use.

No — product details state "Battery: No Battery Used," indicating the band contains no battery.