["Bluetooth-compatible 5.0 Wireless Beanie Knitted Cap Music Player Components Accessory Module Winter Hat Headset Speaker Mic Parts\n\nDescription:\nbrand new and high quality\nFeatures:\nBluetooth-compatible hat accessory, music player component, easy to use.\nHigh-quality hardware configuration, stable signals, and rich functions.\nBluetooth-compatible parameters:\nBluetooth-compatible version: 5.0\nHeadphone channel: Stereo (2.0)\nMicrophone distance: 1m\nBattery capacity: 150ma / h\nSpeaker power: 0.05w\nFrequency: 2.4ghz\nCharging time: 1-2h\nBluetooth-compatible transmission distance: 10-15m\nBluetooth-compatible playback distance: maximum sound 12h\nBluetooth-compatible standby time: 72h\nHorn internal resistance: 32Ω\nFrequency response: 100hz-18khz\nSignal to noise ratio: 75 dB\n\nSpecification:\nType: Hat Music Components\nMaterial: Plastic\nApplications: for Bluetooth-compatible Wireless Beanie Knitted Cap\nFeatures: Hat Music Components, Bluetooth-compatible Wireless, Accessory Module, Player Accessory Module, Music Headgear Parts\nDimension: app.3.8x3.3x1.2cm/1.49x1.29x0.47in\nColor: Black\nQuantity: 1 Pc\n\nNote: \n1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\n2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 Pc x Hat Music Components"]