Let your child’s imagination soar with Barbie Wireless Headphones! Designed for endless fun, these headphones offer up to 40 hours of playtime on a single charge, so the adventure never has to end. With a built-in microphone for easy calls and clear conversations, your little one can stay connected while on the go. And with just a quick 2-hour charge time, they’ll be ready for hours of music, movies, or games in no time. Specifications: 90 Foldable And Turnable Ear Muffs Built-In Microphone Play Time: 40 Hours (Volume at 60%) Talking Time: 45 Hours Charging Time: 2 Hours Charging Port: USB-C Bluetooth Version: V5.3 Working Distance: 10 Meters Battery Specs: 3.7V 300mAh Charging Voltage: 5V Driver: 40 x 2mm Impedance: 64Ohm S.P.L Frequency Range: 2.4GHz-2.48GHz Sensitivity: 100dB+/-3dB