evo.com | Lenz Ski Socks > These Lenz rcB 1200 Lithium Battery Packs put the power of warmth (for your toes) right at your fingertips. With nine heating levels controllable via the Lenz app, you can fine-tune your comfort for up to 14 hours. For those who prefer a more straightforward approach, you can also adjust between three heat settings directly on the pack - perfect for when your phone's busy playing your "Staying Toasty" playlist. 2 Lithium Pack rcB 1200 Rechargeable Batteries Provide up to 14 hours of heat at the touch of a button for work, sport and leisure. USB Charging Cable Included Control with Smartphone App Heating output can be controlled with the free smartphone app (9 heating levels) or directly on the lithium pack (3 heating levels). Lithium packs are connected to the socks with snap fasteners. Small, Light & Compact | Lenz rcB 1200 Lithium Battery Packs 2025 - OS Socks
