Features: brand new and high quality Support audio equipment with audio input, realize wireless audio reception and transmission, support automatic search and connection of Bluetooth-compatible devices, realize wireless audio transmission. Built-in noise cancellation circuit, gorgeous stereo, more pure sound quality With built-in enhancement signal transmission circuit, fast connection, more stable and continuous sound Built-in battery, long battery life, Bluetooth-compatible 5.0, low power consumption , human voice prompts, simple and clear operation High-definition LED digital display,support bluetooth-compatible list display, you can choose the bluetooth- you need. for Smart compatibility, for Android, IOS system mobile phones and PAD, and all Bluetooth-compatible audio devices Specifications: Product Category: Bluetooth-comaptible Transceiver Size: approx 52x52x11mm or 2.05x2.05x0.43in Material: ABS Color: Black Support BT: 5.0 Battery Capacity: 200MAH Connection Mode: 3.5MM Aux Working Distance:app. 10M or 32.8ft DC: 5V Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 x BT5.0 Audio Adapter 1 x 3.5MM Audio Cable 1 x Type C Cable 1 x Manual