DescriptionProduct Specification:Product Name: Sleeping Eye MaskTransmission distance: more than 20 metresChannel: Stereo StereoSpeaker parameters: 24 Ohm/30mmSpeaker power: 10mW x2Signal-to-noise ratio: 104 dBFunctions: previous song, next song, volume up, volume down, play, pause, answer call, make call, activate SIRI, microphone intercomPlayback time: 6 hours (tested on iPhone at 100% volume)Talk time: over 7 hoursStandby time: over 260 hours (actual test)Functionality1* COMFORTABLE KIDS HEADPHONES: Headband headphones are perfect for girls and boys of any age who hate earbuds or struggle with bulky in-ear headphones. The cute headband is fun to wear, washable and compatible with most devices.2* HEARING PROTECTION VOLUME LIMITATION: The headband is soft and washable, and the ultra-thin speakers are limited to 104 dB to protect little ears. No earplugs that stick in your ears or bulky headphones that don't fit properly.3* KIDS HEADPHONES FOR SCHOOL AND TRAVEL: Comfortable and flexible headband stays in place and won't interfere with car seat headrests or airline seats, allowing your child to sleep comfortably while travelling.Ultra-thin speakers and Bluetooth wireless functionality are compatible with most mobile phones, tablets, laptops and other devices.4* KIDS HEADPHONES: Kids will love the characters and colours and won't be bothered by ill-fitting earbuds. You can also pull