Outdoor Cycling Portable Low Frequency LED Color Light Compact Speaker Features: Bluetooth connection function: This speaker adopts Bluetooth 5.0 specifications, ensuring a more stable and faster wireless connection experience. Supporting wireless transmission distance of up to 10 meters, it can maintain continuous audio playback even at long distances, making it very suitable for outdoor cycling and other scenarios. Bluetooth connection is easy and fast, just turn on the Bluetooth function of your phone or other Bluetooth devices, search and connect to the audio system to enjoy superior music. Memory card audio playback function: The audio system supports Memory card audio playback. Users can store their favorite music files in the Memory card and insert the audio system to play. This feature does not require a Bluetooth connection and can enjoy music even without a Bluetooth device. Support multiple audio formats, such as MP3, WAV, etc., to meet the music needs of different users. FM radio function: With built-in FM radio function, users can search and save local radio channels. The FM radio function is particularly practical for outdoor cycling, as it allows you to listen to radio programs anytime, anywhere and stay up-to-date with the latest information. Supports both automatic and manual channel search road, making it convenient for users to quickly find the desired channel. Light Effect Mode: The audio system is equipped with 8 light effect modes, including various effects such as flashing, gradient, and breathing. Different lighting modes can add more treat and feel to outdoor cycling. Charging and battery function: Using Typc-C interface for charging, charging is convenient and fast. Equipped with an 800mAh polymer battery, it ensures that the audio system has a longer battery life when used outdoors. According to usage, the playback can arrive 2-4 hours, meeting the needs of most outdoor activities. The battery voltage is 3.7V, safe and, providing stable power support for users. Product Description: Product Name: Bluetooth Audio System Colors: silve.r Material: ABS Mode: Bluetooth connection/Memory card audio playback/FM reception Light effects: 8 light effect modes Charging: Typc-C charging/built-in polymer battery Bluetooth specification: 5.0 Wireless transmission distance: 10 meters Horn size: 40mm Horn power: 405Wx1 Battery capacity: 800mAh Battery voltage: 3.7V Product size: 7.8x7.8x4.2cm (3.07x3.07x1.65 inches) Packaging size: 9x4.8x11.5cm (3.54x1.89x4.53 inches) Gross weight: 190 grams (0.42 pounds) Package Contents: 1x Bluetooth audio system 1x charging cable 1x instruction manual