Chiikawa-themed 'Sma-Hie' Smartphone Cooling Sheets Announced

Hamee Corp., a developer of smartphone goods and operator of e-commerce sites, has announced the launch of 'Chiikawa' designs for its 'Sma-Hie Premium: Removable Smartphone Cooling Sheet,' which suppresses smartphone overheating and prevents battery degradation. Sales are scheduled to begin on June 2, 2026, via the Hamee official online store. The products will also be available sequentially at Chiikawa Market, Chiikawa Land locations nationwide, and various retail stores including general merchandise and electronics shops. This product uses a heat-storage mechanism applied to the back of the smartphone. Internal microcapsules liquefy to absorb heat, preventing issues such as battery degradation, reduced charging speeds, and sudden freezes. The absorbed heat is released into the air, and as the sheet cools, it returns to a solid state, allowing for semi-permanent use. Furthermore, it uses re-peelable silicone gel, making it possible to reapply the sheet multiple times. Featuring summer-themed motifs and scenes from the daily lives of Chiikawa characters, these designs look great even inside transparent cases, making them an ideal item for comfortable smartphone usage.