Stable performance, strong signal reception, linear distance of more than 10 meters Input voltage: 5V Output power: 4 ohms 3W Bluetooth and power amplifier functions are two-in-one. It can be used after connecting to the power supply and speakers. It can be used in a small space and improve the production yield rate It has a wide range of applications, including Bluetooth speakers, toys, massage chairs, household appliances, electric vehicles, lighting, photovoltaic products, fitness equipment, Alipay and other QR code payment voice broadcasts, etc Name:Bluetooth Module Material:PCB Model:CA-6928 Input voltage: 5V Output power: 4 ohm 3W mit power: 4dBm colour: Navy blue Package Contents: 10 x Bluetooth Module 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. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.