Emergency whistle with 3D sensor pedometer Yellow "Hoisuru" FB-738

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. Size: Width 81 x Depth 14.5 x Height 34 mm Weight: Approx. 28g (including battery and strap) Materials: Body: ABS (acrylonitrile butadiene styrene) resin, transparent lens: PMMA (polymethyl methacrylate acrylic) resin Country of Origin: China Set contents and accessories: Main unit, neck strap (approx. 40 cm), trial battery (CR2032 x 1) Warranty period: 1 year Power supply: 1 x coin-type lithium battery (CR2032) Battery life: Approximately 1 year Function: Step count display (99,999 steps) Whistle volume: 100dB or more *The whistle does not use batteries.