With Type-C Input TF Card Slot Hands-Free AUX Car Bluetooth Receiver 1.Wired to Wireless Connect Multiple Devices: Convert wired audio to Bluetooth signal make the audio output via Bluetooth receiver 2.Use for Car Vehicle NavigationHands-Free TalkingMusic Entertainment: Say goodbye to the danger of answering the phone while driving with one hand one-click hands-free function, for safe call answering 3.Built-In Bluetooth V5.3 Powerful Chip Escort the Sound Quality: Adopt a professional audio chip, with Bluetooth 5.3 protocol, which makes audio analysis ability stronger, lower delay speed, and more stable signal transmission 4.Strong Expansion More Fun: Built-in TF card slot, you can listen to music freely without taking your mobile phone outside 5.ABS material: Lightweight and durable, exquisite, compact, and easy to carry when going out Specifications: 1.Model: W2 2.Material: ABS 3.Battery capacity: 120mAh 4.Size: 4.6 x 3.1 x 1.6cm 5.Product weight: about 10g 6.Playback time: about 6 hours