Laelr fleece headband headphones adopt Bluetooth V5.0 chips, Hi-Fi stereo, super bass effect, great sound quality. fast and stable transmission rate, long transmission distance. English voice prompt function. multiple functional buttons. it'a able to display battery status and activate SIRI intelligent voice assistant for iOS system. Up to 6 Hours Playing Time Ultra-low power consumption, 6-hour continuous music playing. Fast and stable transmission rate, the transmission distance is above 20 meters if there is no obstructing, and the maximum distance can be 50 meters. Bluetooth Connection Bluetooth V5.0 chip, Hi-Fi stereo, super bass effect, great sound quality, clear and steady phone conversation. It'a able to display battery status and activate SIRI intelligent voice assistant for iOS system. Multiple functional buttons, previous/next song, volume up/down, play/pause, answing/making phone calls, microphone intercommunication. Washable Bluetooth headband The control board and microphone are detachable, you can take out the bluetooth module and wires out. The Bluetooth headband headphones are washable, simply remove the speakers and clean the band. Better to wash the mask by hand with warm water.