Features 1、AUX Bluetooth receiver transmitter, lossless sound quality, brings you an excellent listening experience. 2、To be a Bluetooth TV, it has a 3.5mm audio interface to connect to the TV and transmit sound to the headset via Bluetooth. 3、To be a Bluetooth speaker, it can be connected to a 3.5mm audio port, and the speaker without Bluetooth function can also be played wirelessly. 4、Lightweight appearance, small and portable, can be easily held and used in various places. 5、Simple operation, just follow the step‑by‑step instructions on the manual, you can use it easily. Specification Item Type: Audio Adapter MPN: Not Supported Material: PVC Bluetooth Standard: Bluetooth V 5.0 Bluetooth Version: V5.0 Connection Method: Wireless Connector A: USB Connector B: 3.5mm Jack Built-In Polymer Lithium Battery: 140mAh (Battery Included) Package List 1 x Audio Adapter 1 x Charging Cable 1 x 3.5mm Audio Head 1 x Manual