Product Feature: 1. Bluetooth Receiver Widely compatible AUX interface: Plug and play, with AUX input interface. 2. Bluetooth Receiver One-click for hands-free: Say goodbye to the danger of answering the phone while driving with one hand, just one click Hands-free calling and safe driving. 3.Bluetooth Receiver 10 meters free transmission: Automatically connect mobile phone with BT 5.0 Higher transmission efficiency, no delay for safe navigation. 4.Stable Connection: Equipped with Bluetooth 5.0 technology, it can achieve 33 feet long-distance transmission and stable connection, allowing you to have a pleasant music environment while driving. 5.Hands-Free Calling: Built-in microphone, just press the power button to answer or hang up, pause or play music, no need to operate the phone interface, let you drive safely. Product Specification: Brand: HOCO Model: E53 Material: ABS Bluetooth Version: 5.0 Bluetooth Chip: for Zhuhai Jie Li Battery Capacity: 145mAh Charging Time: About 2 H Talk/Music Time: About 10 H Standby Time: 200 Hours Output Interface: 3.5mm Compatible with Audio Equipment with 3.5mm Input Interface (Car, Speaker, Earphone, wtc.) Size: 50 X 48 X 11.5mm/1.97 X 1.89 X 0.45" Weight: 12.6g Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you 2. Please allow 1-3mm measuring deviation due to manual measurement. Package Lists: 1 X Bluetooth Receiver 1 X Charging Cable