evo.com | Lenz Ski Socks > These Lenz rcB 1400 Lithium Battery Packs put the power of warmth (for your toes) right at your fingertips. With three heating levels controllable via the Lenz app (or from the packs themselves), 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. Lithium packs are connected to the socks with snap fasteners. USB Charging Cable Included Operate via the app or on the pack itself. Control with Smartphone App Heating output can be controlled with the free smartphone app or directly on the lithium pack (3 heating levels). | Lenz rcB 1400 Lithium Battery Packs 2025 - OS Socks
