Item Type: Graffiti Bluetooth HeadsetMaterial: ABSBattery Type: Built In 400mAh Lithium Ion Battery (Included)Memory Card: Supports up to 32GB (Not Included)Bluetooth Version: Bluetooth 5.1Transmission Distance: 10m / 32.8ftFrequency Range: 20Hz-20KHzSpeaker Size: 40MM/1.6inImpedance: 32Package List1 x Bluetooth Headset1 x Sound Cable1 x Charging CableWe recommend that you remove the headphones every 2 to 3 hours to allow your ears to relax for better listening enjoyment and to keep your head more comfortable1Bluetooth 5.1: Graffiti bluetooth headset uses the latest bluetooth 5.1 chip to provide you with a perfect connection to any bluetooth compatible listening device. 22 Modes: Graffiti wireless headphones turn on with a long press of the On or Off button for about 3 seconds when in bluetooth mode. A detachable 3.5mm sound cable is also available. 3Comfortable: Bluetooth on ear headset has padded ear cushions and ultra soft memory protein foam leather ear cups and headband for maximum comfort. 4Adjustable Headband: Wireless on ear headset has an adjustable and very flexible headband, so it can perfectly fit the shape of your head. 5Portable: Bluetooth on ear headset is easy to store and carry, making it convenient for you to wear the headset anywhere, anytime, making it an ideal gift for kids, family and friends. 6Stereo HD Sound: Wireless on ear headset offers stereo HiFi grade sound quality and powerful bass. With a built in microphone and volume control, you can answer calls and play or pause songs with the push of a button.