Featuring a cute cartoon design and voice change function, this wireless microphone is a great choice for children or students. The wireless microphone is equipped with a Bluetooth 5.0 chip for stable transmission and delivers high-fidelity, surround sound audio. Made from ABS material and silicone, it is durable and eco-friendly. The product measures 21cm x 7.3cm x 7.3cm. Colorful LED lights enhance the singing experience. It is compatible with various devices such as smartphones, laptops, and tablets, and supports multiple connection methods including Bluetooth and TF card.Item Name: Wireless Microphone Material: Silicone, ABS Model: K5 Pickup: Condenser Speaker Power: 4.5W (Speaker Output) Frequency Response Range: 30Hz~20KHz Maximum Sound Pressure Level: >115dB at 1KHz THD Bluetooth Version: 5.0 Power Supply: 1 x 5V 18650 Battery Battery Capacity: 1800mAh (Included) Battery Life: 4 hours Charging Time: 3 hours Working Temperature: -10C to 45C Connection Method: Bluetooth / TF Card Features: Mini, Lightweight, Sensitive Size: 21cm x 7.3cm x 7.3cm / 8.27" x 2.87" x 2.87" (Approx.)Note: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement.Package Includes: 1 x Wireless Microphone 1 x Data Cable