FUN & ENGAGING DESIGN: Bright rainbow sparkly finish and colorful lanyard make this doorbell both eye-catching and fun-boosting student engagement. Kids respond better to musical cues than verbal commands PORTABLE WITH INCLUDEDL ANYARD: Includes a comfortable, rainbow lanyard so the remote stays with you-no more searching for buttons during lessons. 38 DIFFERENT BELL TONES TO CHOOSE FROM: 38 different bell tones to choose from, you can combine them at to keep your students focused. Whether you like soft bells or energetic bells, there is always a bell that suits your classroom activities. CUSTOMISABLE VOLUME: The doorbell features 4-level volume control, ensuring it can be heard clearly in classrooms of any size. You can adjust the volume to your , making it suitable for a quiet environment or a larger classroom. PERFECT FOR CLASSROOM AND HOME: The doorbell is not only great for teachers, but also for homes, apartments, or small businesses. It's a great choice in any space where you need to attract attention or send a signal in a fun and way. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Voltage: AC110V Color: As shown Material: ABS Package Contents: 1 pager 1 receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.