Rechargeable Smart Bike Rear Light, Remote Control Anti-theft Bike Alarm Horn with Turn Signals Brake Auto Tail Light On/Off Waterproof

Features:Waterproof level: IP54Working frequency: 433MHzOperating temperature: -40～+60 ℃Working humidity: <80%Tail light battery: 3.7V 2000mAh lithium battery (included).Taillight Charging Port: Standard USB-C, 5VTaillight Size: 125 x 33 x 97mm Taillight bracket diameter range: 2.4-3.5cmAlarm sound level: 110dBRemote control battery: CR2032 battery (included)Remote control size: 45 x 41 x 17mmRemote control distance: about 30m< p>Remote bracket diameter range: 1.9-2.3cmPackage content:1 * fire bike tail1*remote control2*taillight mounting bracket1*remote mounting bracket 2 * silicone ring1 * accessories and tool bag1 * USB-C charging cable (plug not included)1 * instruction manual UsageAttention:1) Before first use, please charge the device to activate it. Charging is complete when the right 4 LEDs (3 small + 1 large) are on.2) The plug is not included. Please connect the taillight with PC or power bank to charge it, you can also use USB cord + your cellphone socket to charge it.