This model has a recording function (recording time: 10 seconds). Single size: 16*10*5cm. Box size: 50 pieces. Box specification: 51*51*34CM. Small speaker with No. 5 battery. Product features: Clear sound. Great helper for suburban travel, training and study! The dimensions are 16CM in height and 10CM in diameter. It uses 6 No. 5 batteries, is mini and portable, and is convenient and cute! When traveling, a tour guide is always ready! 2. Led by a teacher, it's endless and easy! 3. Leadership combination is just convenient! Weight: 0.35 kilograms Size: 16*10*5cm small speaker with battery (without battery, 6 AA batteries need to be prepared by yourself), cover color available (green, red, dark blue), randomly dispatched. If you have color requirements, please leave a message when placing an order. Product features: Small in size, light in weight, easy to carry, beautiful in appearance, well-proportioned in design, with a folding handle, it can be worn around the waist or shoulder. · Scope of application: Teacher teaching, tour guide speeches, on-site factory visits and training, commercial promotions, summer camps or camping, traffic management assistance and many other activities. · Product Functions: Amplification function and music function · Power Supply: 6 AA dry batteries [voltage, 9V] (Batteries need to be provided by the buyer) · Power: 5w · Dimensions: Height: 16 cm, horn diameter: 10 cm. The top color of the speaker is randomly dispatched (red, green, light purple, purple). The sound is loud and clear. · Transmission distance: 200 meters · Weight: 0.35KG (excluding battery) · Equipped with imported integrated circuits, it features loud and clear sound quality, a long transmission distance of up to 200 meters, and a foldable handle for easier portability