1.BT0503 is a unique ultra-portable and IPX5 waterproof Bluetooth speaker that is small in size but with surprisingly big sound. 2. The BT0503 offers 7 hours of playtime, powered by a 500mAh rechargeable Li-ion battery, allowing you to bring your music with you. 3.With TWS wireless connection 4.With leather hook you could hang the portable speaker on backpack, bicycles, cars and anywhere you like. It is very suitable for outdoor, hiking, beach, Take your music on the Go.

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