【Multi-functional Design】 NIPLUX EYE BEAT is an eye mask-type device with music playback, vibration, and Bluetooth connectivity. It's perfect for when you want to relax or reduce stress. 【Comfortable to Use】 The operating temperature range is 10°C to 45°C, and the humidity is below 80%RH, allowing for comfortable use. It is equipped with a 600mAh battery, enabling long-term use. 【Stylish Design】 The simple black design matches any scene. It's convenient for relaxation at home or during travel. - Brand: NIPLUX - Product Name: EYE BEAT - Model Number: NF-E8233K - Power Supply: DC 5V 2A - Color: Black - Battery Capacity: 600mAh - Operating Temperature Range: 10°C-45°C - Operating Humidity Range: Below 80%RH - Usage: Music, Vibration, Bluetooth Function - Design: Eye Mask Type - Functions: Music Playback, Vibration, Bluetooth Connectivity Thank you for viewing.