Supports Bluetooth 4.0 dongle adapter with A2DP and HFP - A2DP: PC to Bluetooth headphones for stereo music playback. Audio format: 44.1 kHz, dual channel, 16-bit. - HFP: Bluetooth headset voice transmission. Audio format: 8 kHz, mono, 16-bit. Excellent performance and compatibility - Updated to the latest version with stable performance. - Optimized as a PS4 Bluetooth dongle (latest version) for reliable gaming audio. USB plug-and-play and power - USB adapter plug-and-play: connects to any USB port and pairs with Bluetooth audio devices without additional drivers. - USB 5V power supply: powered via USB 5V; when turned on, Bluetooth activates automatically for immediate use. Use scenarios - PC or laptop: stream music or audio from your computer to Bluetooth headphones for wireless listening. - PS4: enable wireless Bluetooth audio for games and entertainment. - Bluetooth headset: use HFP for voice transmission in calls or in-game chat. Notes - Compatible with devices supporting A2DP and HFP profiles. - No extra software required; simply plug into USB and pair with your audio device.