Description <br> Internal card capacity: supports up to 64GB <br> mission distance: barrier free, approximately 15m <br> Supporting protocols: AVRCP, A2DP <br> Standby time: about 30 days <br> <br> Input parameters: DC5V/1A <br> Output method: AUX + FM <br> Microphone: High quality microphone <br> Bluetooth version: V5.3 <br> Music format: WAV/MP3 <br> Usage time: approximately 6-8H <br> Battery capacity: 300mAh polymer lithium battery <br> Bluetooth mode: Bluetooth reception/Bluetooth mission <br> Basic functions:RX + TX + +TF card + FM <br> Supporting equipment: speakers / cars / televisions / computers / headphones / amplifiers/ projectors / mixing consoles, etc <br> Colour:Black <br> Material:plastic <br> <br> Package Contents: <br> 1 x Blueetooth Adapter <br> 1pcs x Charging cable <br> <br> Only the above package content, other products are not included. <br> 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. <br>