This battery-free telephone ring amplifier is the perfect solution for anyone who wants to ensure they never miss an important call. Its sleek and modern design is both stylish and practical, making it a great addition to any home or office. The adjustable volume feature makes it a versatile and practical tool for any telephone user. Features -Color:White -Material:PP -Size:9.70X5.70X2.50cm/3.81X2.24X0.98in -Convenient and cost-saving design eliminates the need for batteries in this telephone ring amplifier, ensuring a . -The amplified telephone ring feature that you will never miss a call, even in noisy environments where the sound may be easily drowned out. -The sleek and modern white exterior of this device adds a touch of style and sophistication to any home or office setting. -The adjustable volume feature allows you to adjust the sound level of the telephone ring to your liking, ensuring a pleasant experience. -This telephone ring amplifier is compatible with all types of telephone systems, making it a versatile and practical choice for any user. Package list: 1 x Telephone Ring Amplifier