Rev up the fun with Hot Wheels kids wireless headphones! Designed for young racers, these headphones deliver 28 hours of non-stop playtime, so your little one can enjoy their favorite tunes or videos all day long. The built-in microphone makes communication a breeze, whether for gaming or chatting with friends. Plus, the comfy ear muffs provide a snug fit for hours of listening without discomfort.   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