LOUD STEREO SOUND: Small size but powerful loudness. The combination of crisp high tone, extra bass, and surprisingly room-filling loudness presents you with an unparalleled audio experience, and you can pair two KOLEER S31 Bluetooth speakers via TWS Dual pairing for even more fun.
IPX7 WATERPROOF: Grab and go without worrying about rain or spills damaging the speaker. The durable silicone exterior ensures you a happy time outdoors playing music freely under any weather conditions.
This portable IPX7 waterproof Bluetooth speaker is your ideal outdoor speaker choice.
BLUETOOTH 5.0: Effortless pairing and stable connection, thanks to the latest Bluetooth 5.0 technology.