Thanks for your visiting our store! Features: • Answer the phone and play music safely through the phone. •Bluetooth wireless connection, built-in microphone, FM transmitter + USB charger + MP3 play more→er • Support Bluetooth hands-free phone, built-in microphone. • Noise reduction technology can achieve clear and clear calls and music. • With FM transmitter function, support adjustment. Full frequency coverage 87.5-108.0MHz. • Allow to accept up to 32G MicroSD card and play music on MP3WMA form. • Equipped with 2 USB charging ports 5V2.1A and 1.0A, which can charge smart phones or tablets. Product Details: • Bluetooth version: Bluetooth 5.0 •Bluetooth protocol: A2DP, AVRCP