1. THREE-SPEED TEMPERATURE CONTROL: Supports three temperature levels: high (60°C), medium (50°C), and low (40°C). One-button operation meets different needs from daily warmth to cold outdoor activities. Intelligent constant temperature technology ensures stable and comfortable temperature.
2. INVISIBLE HEATING: Adopts high-quality heating wire for 3-second fast heating without long waiting. Invisible heating design is elegant and uniform, effectively relieving neck chill.
3. USB LOW VOLTAGE: Powered by USB-connected power bank with 5.0V safe low voltage for worry-free use.
4. CAREFUL DESIGN: Soft and skin-friendly material with tassel design for comfortable wearing, balancing warmth and fashion. Hidden zipper design for a sleek appearance; built-in battery pocket for easy storage. Supports washing (water temperature ≤30°C) for hygiene.
6. SPECIAL REMINDER: This product does not include a power supply. Users need to prepare their own battery (requirements: USB 5V/2.0A output, size ≤8×6×1.6cm rechargeable battery).