<ul> <li>Bluetooth 5.1 connection, providing you with strong and stable signal transmission and low power consumption mode of operation, can be connected to two audio devices at the same time to play in turn</li> <li>Support Bluetooth connection, TF card playback, U disk playback, AUX audio playback, support lossless FLAC, APE format MP3, WAV, WMA music decoding</li> <li>Speaker with a double metal diaphragm, effectively enhance the low-frequency, so that the bass clearly outflow, anytime, anywhere to enjoy the surging sound quality</li> <li>Totally enclosed chamber design, waterproof up to IPX7, so you can use it in different places whether it's the bathroom, the beach, or outdoors without worrying about the good</li> <li>Braided lanyard design, firm and durable easy to screw up the speaker, can be hand-held or hung on the backpack, wherever you go, it is a convenient travel partner</li> </ul> <p><strong>Specifications:</strong></p> <ul> <li>Output power: 10W</li> <li>Output Speaker: 4&Omega;10W</li> <li>Input sensitivity: 400mV</li> <li>Separation degree: &ge;90dB</li> <li>Signal-to-noise ratio: &ge;80dB</li> <li>Operating voltage: DC 3.7V</li> <li>Battery: 2400mAh&nbsp;18650</li> <li>Battery operating time: 4-6H</li> <li>Total power: 10W</li> <li>Speaker size: 57mm*1&nbsp;</li> <li>JL program: Version 5.1</li> <li>Main Control: AC6965E</li> <li>Waterproof grade: IPX7</li> </ul>