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✔ Ultra-high 30,000mAh capacity
✔ Charge up to four devices simultaneously
✔ LED battery level indicator
✔ Universal compatibility with USB devices
✔ Durable flame-retardant construction
✔ Ideal for travel, outdoor use, and emergencies
✔ Reliable backup power for heavy users
Power through extended days with the ultra-high-capacity BOROFONE BJ55B power bank. Featuring a massive 30,000mAh battery, this portable charger is designed for heavy users, travel, emergencies, and situations where reliable backup power is essential.
Equipped with four output ports, it allows simultaneous charging of multiple devices such as smartphones, tablets, wireless earbuds, and other USB-powered electronics. The rugged flame-retardant ABS + PC casing enhances safety and durability, while the LED indicator displays the remaining power level at a glance.
Ideal for outdoor activities, long commutes, field work, and backup power at home or office, the BJ55B ensures your devices stay charged wherever you go.
Brand: BOROFONE
Model: BJ55B
Battery Type: Lithium Polymer
Battery Capacity: 30,000mAh (111Wh)
Rated Capacity: 16,500mAh
Input:
• USB-C / Micro-USB: 5V / 2A
Output:
• USB-A1 / USB-A2: 5V / 2A
• Total Output: 5V / 2A
Ports: 4 Output Ports
Indicators: LED power level indicator
Material: ABS + PC flame-retardant shell
Dimensions: 139 × 68 × 40 mm
Weight: 590 g
Material: ABS + Silicone
Connection Type: 2.4 GHz wireless (USB receiver)
Sensor DPI: 1000 DPI
Buttons: 3 buttons
Switch Lifespan: Up to 3 million clicks
Model: BJ55
Capacity: 10,000mAh (Rated 5,500mAh / 37Wh)
Ports: 4 total (2 Output + 2 Input)
Outputs: Dual USB-A (5V/2A) — charge 2 devices at once
Inputs: USB-C & Micro-USB (5V/2A)
Battery Type: Lithium-polymer
Indicator: LED battery level display
Material: ABS + PC
Powerful 50 mm drivers for immersive sound
Adjustable noise-reducing microphone
RGB lighting for gaming style
Dual interface: USB + 3.5 mm audio plug
Inline remote with volume control
Comfortable over-ear design for long sessions
Extra-long 2 m cable
Compatible with PC, laptop, and desktop setups

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