Bluetooth 5.3 High-definition Sound Quality Ultra Long Standby Hands-free Call AUX Interface Bluetooth Receiver Features: 【Receive/transmit mode】This Bluetooth receiver features an integrated design of transmitting TX and receiving modes, with signal options to meet your usage needs. 【Handsfree Call, Listening to Music】With a Bluetooth receiver, the car audio system immediately becomes a Bluetooth audio system, allowing you to listen to music on your phone along the way. Equipped with a built-in microphone, the hands-free amplification function enables clear communication, freeing up hands and making driving safer. 【Wired to Wireless】This Bluetooth receiver is paired with a 3.5mm audio cable to connect old-fashioned speakers, headphones, and TV, making it easy to listen to mobile music and watch TV shows. 【Bluetooth 5.3 chip】This Bluetooth receiver is paired with a newly upgraded Bluetooth 5.3 smart chip, providing stable transmission with low latency, rejecting stuttering, and a long transmission distance. 【Built in Battery】This Bluetooth receiver is equipped with a 300mAh lithium battery, which can be fully charged in about 45 minutes. The receiving mode can work for about 6 hours, and the transmitting mode can work for about 3.5 hours. Product Description: Product name: Multi functional Bluetooth adapter Product color: black Bluetooth version: Bluetooth 5.3 Transmission distance:10meters Power supply form: Type-c interface Battery capacity: 300mAh Working hours: reception mode for about 6H, transmission mode for about 3.6H Package size:16×7×1.8cm/6.3×2.8×0.7in Package wieght:70g/0.15lb Product Description: 1 x Bluetooth receiver 1 × metal adapter 1 x instruction manual 1 x charging cable Our Car Accessories are Dedicated to Making Our Customers More Satisfied with Their Use, And We Will Focus on Customer Satisfaction to Improve and Update Our Products to Ensure that Every Customer Has a Good Experience! Our Car Accessories Must be Safe for Our Customers to Use, So We Ensure that Our Products Can be Used Normally and Safely When They are Made, To Ensure that All Customers Can Use the Products Safely. Our Car Accessories are also Very Practical, So that Customers in the Use of Up, Can Feel The Usefulness of the Product Everywhere, And Very Convenient to Use, Easy to Use!