Rechargeable battery offering several hours of listening in wireless mode, or unlimited listening in wired mode with the included audio cable. Lightweight, durable, and foldable design, easy to carry for school, travel, or leisure at home. Adjustable and comfortable for everyone: whether for kids, teens, or adults, it fits all head sizes. Specification: Disney Frozen Weight: 0.31 kg Dimensions: L17.70 x W8.50 x H24.80 Battery Type: Lithium 600mAh Number of batteries: 1 Battery included: Yes Power Supply: Rechargeable by USB-C (included) Pink Strass Weight: 0.36 kg Dimensions: L17.50 x W8.30 x H20.40 Battery Type: Lithium 600mAh Number of batteries: 1 Spiderman Weight: 0.27 kg Dimensions: L17.00 x W8.00 x H19.00 Battery Type: Lithium 400mAh Number of batteries: 1 Battery included: Yes Power Supply: Rechargeable by USB-C (included) Disney Toy Story Weight: 0.24 kg Dimensions: L16.80 x W7.40 x H18.00 Battery Type: Lithium 400mAh Number of batteries: 1 • Enjoy your music wirelessly via Bluetooth5.0 (range up to 10m) or plug it in via the included detachable aux cable. • Built-in microphone, with play/pause buttons, mode, and volume control for easy music control and answering phone calls. • 12 Months Local Manufacturer Warranty Store in cool and dry place. China