Bluetooth-compatible 5.0 Wireless Beanie Knitted Cap Music Player Components Accessory Module Winter Hat Headset Speaker Mic Parts Description: brand new and high quality Features: Bluetooth-compatible hat accessory, music player component, easy to use. High-quality hardware configuration, stable signals, and rich functions. Bluetooth-compatible parameters: Bluetooth-compatible version: 5.0 Headphone channel: Stereo (2.0) Microphone distance: 1m Battery capacity: 150ma / h Speaker power: 0.05w Frequency: 2.4ghz Charging time: 1-2h Bluetooth-compatible transmission distance: 10-15m Bluetooth-compatible playback distance: maximum sound 12h Bluetooth-compatible standby time: 72h Horn internal resistance: 32 Frequency response: 100hz-18khz Signal to noise ratio: 75 dB Specification: Type: Hat Music Components Material: Plastic Applications: for Bluetooth-compatible Wireless Beanie Knitted Cap Features: Hat Music Components, Bluetooth-compatible Wireless, Accessory Module, Player Accessory Module, Music Headgear Parts Dimension: app.3.8x3.3x1.2cm/1.49x1.29x0.47in Color: Black Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pc x Hat Music Components