Marshall Willen II Portable Bluetooth Speaker (Black and Brass) Android Tablets High-Efficiency Ball Bearing Core: Equipped

High-Efficiency Ball Bearing Core: Equipped with an automatic ball bearing friction-reduction motor

Heavy-Duty Industrial Hardening: Engineered to shrug off extreme environmental hazards

The AULA F820 features 8 highly responsive operational buttons

and an adjustable sternum strap featuring a built-in rescue whistle for maximum travel safety

Marshall Willen II Portable Bluetooth Speaker (Black and Brass) Android Tablets High-Efficiency Ball Bearing Core: EquippedMarshall Willen II Portable Bluetooth Speaker (Black and Brass) High Light Driver Type : Dynamic Frequency range : 75 20,000 Hz Stereo mono : Mono Play time : 17+ hours Quick Charging : 20 minutes charge gives 5. 5 hours of playtime Charging time : 2. 5 hours MAINS INPUT VOLTAGE : USB C 5V 1. 5A Wireless connectivity : Bluetooth 5. 3 LE Bluetooth range : Up to 100 m in free field Water Resistance : IP67* (* with an IP67 dust and waterproof rating you