Add your brand to this 13 oz. freedom Bluetooth® speaker vacuum water bottle! The double wall stainless steel water bottle (304 SS interior, 201 SS exterior) features an ABS and silicone color accent panel speaker band and is designed for use with hot and cold liquids. The BPA free bottle holds up to 13 oz. (400 mL). Handwash only. Do not microwave. Do not place in freezer. The speaker must be charged prior to first use and charge time varies by device. Charging cable and instructions included. FCC Approved. Power/Technology: rechargeable lithium polymer battery: 300 mAh; Input: DC 5V; Sensitivity: 85dB +/-2dB; Frequency response: 20Hz-20KHz; Transmission range: 10 m (30 ft.); Bluetooth® Version: 4.1. WARNING: Refer to the item manual for safety and warning instructions.