Neck Bluetooth Cooler

battery capacity: Lithium-ion polymer battery 1800mAH*2 Voltage: 4.3V Working current: 1A Speaker: 4Ω3W*2 Plug: 5V2A Micro USB Product size: 218x232x60mm Product weight: 388g Bluetooth version: V5.0 Charging time: 3 hours Standby time: 3 months Endurance: 6-7 hours (without starting the fan) 　　　 4 hours (start the fan) Power display: blue light (100-70%) / blue and red flashing each other (70-20%)/red light (below 20%, please charge) made in China Design: Taiwan
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