Wireless on-ear Bluetooth headphones equipped with an MP3 player, microSD card reader, AUX input, microphone, and FM radio. Thanks to Bluetooth connectivity and a built-in microphone, the device can be used for making phone calls. Technical Specification: Bluetooth 5 connectivity.0 Active Noise Cancellation System Protection Rating: IPX9 Built-in Microphone MicroSD Card Slot AUX Input - Option to Connect as Traditional Headphones LED Indicators Informing About Device Status or Mode Color Backlighting Power Supply: 500mAh Battery Frequency Range: 20Hz-20kHz Bluetooth Range: 10m Playback Time (Music): approx. 10h Charging time: approx. 2h Adjustable Headband The package includes a USB-microUSB cable and a miniJack-miniJack 3.5mm