t sounds like the BreezeNeck Portable Fan is a compact and innovative device designed for personal cooling. Here are some key features and specifications based on the information provided:

Max. Power: <20W

Remote Control Function: No

Air supply mode: Not specified, possibly a direct airflow method

Fan Speed: Five gears

Water-shortage Power-off Protection: No

Wind Type: Prevailing Wind (likely referring to the natural flow of air)

Voltage (V): 5V

Max. Timing Limit: No Timing

Rotary Vane Quantity: Without Vane (indicating a bladeless design)

Installation: Neck-mounted (wearable as a neck 

Reverse Rotating Function: Yes (possibly to adjust airflow direction)

Timing Function: No Timing

Power (W): 10W

Type: Cooling Only (primarily designed for cooling purposes)

Choice: Yes (likely indicating customer choice or preference)

Additional Features:

• Neck Fan design for hands-free cooling
• Air Conditioning Refrigeration System (possibly a feature for enhanced cooling)
• Smart Technology Chip (suggesting advanced control or functionality)
• Silent Air Duct Design (aiming for quiet operation)
• 5-speed Digital Display (provides precise control over fan speed)
• 

Product Parameters:

• Product Size: 19217560mm
• Rated Power: 3.7V/2.3A
• Charging Method: TYPE-C 2A fast charging
• Charging Time: 2 hours ~ 3 hours

Package Includes:

• Fan * 1
• USB Cable * 1

Overall, the BreezeNeck Portable Fan appears to be a versatile and convenient cooling device suitable for personal use, with features like fast charging, multiple speed settings, and a compact, wearable design.