1. The six core functions are newly upgraded. It is better to buy the right one at a time than to buy it and return it.2. The device is equipped with a of audio interfaces, compatible with audio playback devices, the interface is rich and the connection is simple to meet more needs3. Equipped with a high-performance Bluetooth 5.3 chip, low-loss data transmission, quick response, stronger anti-interference, say goodbye to delays, freezes and other problems4. It is more convenient to realize the wireless connection of ordinary wired speakers with Bluetooth function mobile phone to listen to 5. Built-in NFC sensor chip, the mobile phone can be connected within seconds to support mobile phone and tablet with NFC function, avoiding cumbersome manual connectionModel: T59Interface: USBWhether plug and play: plug and playTransmission rate: 5 (Mbps)Effective work: radius 10 (m)Bluetooth standard: 5.3Working frequency: 2.4 (MHz)Bluetooth solution: 5.3 , A2DP, , AVRCPFrequency: 2.4GHz-2.48GHzPower supply voltage: DC 5V (without built-in battery)Bluetooth receiving function: connect 1 mobile phoneSupport: TF card, U disk playbackColour: BlackMaterial:ABSSize: 6.8 x 5.8cmPackage Contents:1 x host1 x 3.5mm audio cable1 x TYPE-C power cable1 x Chinese and English manualOnly 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.