M6Pro

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Unique battery protection design get longest the lifetime M6Pro bluetooth speaker.The speaker’s battery is down to 30%, and the Bluetooth speaker’s volume drops to 20% to protect the battery. Charge the battery for more louder voluem.(use the Supplied Charging Cable for Long Service Life)
Long Range & Longer Playtime: Bluetooth 5.0 provides fast connection and incredible wireless Bluetooth range of up to 100 feet from your almost any bluetooth device and smart phone.LONGER BATTERY PLAYTIME UP TO 20+ HOURS at the Bluetooth speaker volume is at 50% and off the lights.