Item Type: Smart Audio Receiver Model: Q1 Material: PCB Bluetooth: V5.0 SBC / AAC Input Voltagecurrent: DC 5/1A Audio Output: 3.5mm Audio Cable / 4-Pin Connector Frequency Response: 20Hz-20kHz Signal To Noise Ratio: 100dB Music Format: FLAC, MP3, AAC, AAC+, ALAC, APE, WAV Protocol: for AirPlay, for DLNA, for UPnP, for Spotify Connect, for Qplay NAS Support: NAS That Supports DLNA Package List 1 x Smart Receiving Board 2 x Power Cable 1 x Manual Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Support wireless connection to the speaker via Wifi, bluetooth 5.0, for Airplay, for DLNA and for UPnP. 2For Airplay audio module supports multi room audio and bluetooth 5.0 audio, upgrading home audio to wireless Airplay. 3Support to change SSID and wireless Wifi device name through mobile application. 4You can DIY a unique speaker, enjoy music with your family, and make life more interesting. 5Can be used as a USB DAC, you can connect it to a computer and smoothly transmit PC digital audio.