Features: Small in size, easy to carry and store, convenient to use. Suitable for hotel, guest room, family, elevator, shower room, table and wall for two purposes. This telephone checks lines and performs comprehensive engineering tests, enhancing productivity for technical tasks. Great for telecom engineers, technicians and so on. This device streamlines installations and fault isolation, making it a staple for it maintenance team. Specifications: Component: Plastic Length: about 11.5cm/4.53''(without stretch) Package Includes: 1Set Corded Telephone note: Please allow 1-3cm errors due to manual measurement. Due to difference betweeen different monitors,the picture may not reflect the actual color of the item.