The M301 portable Bluetooth speaker is designed to provide a complete and versatile audio experience. Whether you want to enjoy music, use the wireless microphone with voice changers, or tune in to radio stations, this speaker offers dynamic sound, various connectivity options, and creative features to cater to your entertainment needs.The M303 portable Bluetooth speaker is packed with features to enhance your audio experience. Here's a detailed description of its key specifications and features:Dynamic Thunder Sound: The speaker is designed to deliver dynamic and powerful sound, providing an immersive audio experience for your music and entertainment.Wired Microphone : This speaker includes a wired microphone that allows you to amplify your voice USB Port: The USB port on the speaker serves multiple purposes. You can use it to charge your devices or play music from a USB flash drive, adding versatility to your entertainment options.Bluetooth Version 5.0: Equipped with Bluetooth version 5.0, the speaker offers a stable and efficient wireless connection to your devices. This version also provides improved range and data transfer speed compared to earlier Bluetooth versions.Output Power: The speaker boasts an output power of 10 watts, ensuring a higher audio output, suitable for various indoor and outdoor settings.Playtime: The built-in rechargeable battery provides a playtime of 2 to 3 hours on a single charge. The actual playtime may vary depending on the volume level and usage patterns.Battery Capacity: With a 1200mAh battery capacity, the speaker offers extended usage time, allowing you to enjoy your music and entertainment for longer periods.Micro SD Card Support: The speaker features a micro SD card slot, enabling you to play audio files directly from your memory card, eliminating the need for an external device.In-Built FM Radio: Enjoy listening to your favorite radio stations with the in-built FM radio feature, giving you additional entertainment options on the go