feature: PERFECT GIFT FOR MEN - Unisex fit, one size fits all, perfect tech stocking stuffer for men, women, teens and girls. Keep your hands warm and cozy with a pair of unisex winter knit gloves. A must-have Christmas gift for family or friends. One size fits all: you can wear it comfortably. It also offers the best sound quality and a maximum volume of up to 120dB, so you can enjoy music and take calls in any loud environment. 85% cotton, 15% polyester STYLISH, WARM AND COMFORTABLE: Made from a blend of acrylic and cotton fibers, the soft, cozy and warm material provides maximum comfort, sophistication and safe movement for the most diverse indoor lifestyles and outdoor sports. PREMIUM SOUND QUALITY: Trendy style and unisex design, suitable for all men, women and kids. Universal Bluetooth technology with forward/reverse compatibility connects to all Bluetooth-enabled media player devices. RECHARGEABLE AND WASHABLE: The bluetooth cap integrates an improved battery, the charging time is 1.5 to 2 hours, and it lasts about 4 hours continuously. 10~12 hours of hands-free calling and music entertainment. After removing the bluetooth module,you can wash the hat at any time. Specification: Colour: Black LED Quantity: 5LED Luminous flux: 125 lumens Lighting position: white light weak light/white light strong light/red and blue warning light LED light battery capacity: 300mah Bluetooth protocol: Bluetooth 5.0 Connection distance: 10 meters Bluetooth battery capacity: 200mah Hat Material: Cotton Package Included: 1* LED bluetooth hat Shipment Quantity: 1 piece Package Contents: Only the above package content, other products are not included. Size: 23*20cm (Reminder: The size is measured manually, please allow 1-2cm measurement error) Colour: Black (Due to different monitors and lighting effects, the actual color of the product may be slightly different from the picture color.)