Let your little one dive into a world of music, learning, and fun with Hot Wheels Kids Wireless Headphones! Designed for comfort and safety, these stylish headphones feature a volume-limiting function to protect young ears while delivering crystal-clear sound. With a lightweight, adjustable fit and long-lasting battery life, they are perfect for travel, school, or playtime. Plus, the Hot Wheels design adds a touch of fashion and fun! Specifications: 90° Foldable and Turnable Ear Muffs Built-In Microphone Play Time: 28 Hours (Volume at 60%) Talking Time: 32 Hours Charging Time: 2 Hours Charging Port: USB-C Bluetooth Version: V5.3 Working Distance: 10 Metres Battery Specs: 3.7V 200mAh Charging Voltage: 5V Driver: 40 x 2mm Impedance: 32Ohm S.P.L Frequency Range: 2.4GHz – 2.48GHz Sensitivity: 85dB+ / -3dB