Otl Technologies Children's headphones Transformers Optimus Prime wireless

Suitable for children from 3 years old with two safe volume levels of 85 dB and 95 dB. The built-in 500 mAh battery provides up to 24 hours of playback time. It fully charges in about 2 hours with a USB Type-C charging cable. Range of 10 metres. Adjustable headband for a flexible custom fit for all head shapes. Lightweight, durable, foldable, flexible, and comfortable for use. An additional 3.5 mm audio cable is included.