pgraded version: Bluetooth 5.0/4.2 new firmware WiFi Audio Receiver AIRPLAY / DNLA Wireless Music Adapter for iOS and Android - Multi-Room Sync - Spotify Connect, Tidal, TuneInRadio, iHeartRadio Supported - Easy WPS Setup make your Speaker Dock / Stereo Hi-Fi / Home Music Streaming Sound Systmen Wireless Firmware upgrade/app verifiable/： old version：3.6.4715.0 new version：4.2.7312.0 olve discovered bugs, improve machine functions, enhance machine stability, repair machine vulnerabilities, and improve sound quality. Bluetooth upgrade: Bluetooth 4.0 is upgraded to Bluetooth 5.0, the transmission is farther, the transmission speed is increased by 2 times, and the compatibility is stronger. Features: Stream Crystal Clear Lossless Sound throughout your Home - Control individual or combined playlists and streaming services for multiple speakers from the / or Android App Enjoy your own Music, the Best Streaming Services and Internet Radio - Spotify, Tidal, Tune In and iHeart Radio can all be streamed around your home Link Multiple Speakers by Room or Control them Separately - Use your android or apple portable devices to set up August speaker groups and control what plays in each room Add your Current Stereo to your WiFi Sound System - Connects to your aux in via 3.5mm or optical cable Quick / easy one touch set up using WPS technology-Simply press the WPS button and enter your WiFi password to integrate the receiver into your home network within 10-15 seconds . The receiver features a LAN (Ethernet) connection. It can be connected to your router or network via cable which will integrate it into your home network instantly and will provide the most stable streaming performance. The receiver will be accessible to any devices on your home network whether wired or via WiFi. The receiver will also function as a WiFi repeater - extending the range of your home network and can be password protected for security Specification: SNR: ≥80dB Distortion: ≤1.0/ at 1 KHz Wi-Fi Band: 2.4GHz Wi-Fi Operation Range: Up to 100m Wi-Fi Profile: 802.11 a/b/g/n Bluetooth Version: V5.0 Bluetooth Profiles: A2DP, AVRCP, PBAP Bluetooth Operating Range: Up to 10m (Class 2) Power Input: DC 5V/500mA Dimensions: 140x86.5x25mm Net Weight: 165g