Description:Connect with old speakers, home stereo systems, or other speaker systems via the 3.5 mm or RCA cable, then pair with audio devices for streaming music.Features:1. BL.V5.0 wireless transmission provides a stable connection.2. 3D subwoofer mode button design, equipped with micro memory card slot.3. 10M wireless connection range.Specification:Name: Wireless Audio Receiver For SpeakersWireless Solutions: 5.0 EDR, A2DP, HSP, AVRCPFrequency: 2.4GHz-2.48GHzWireless receiving distance: less than or equal to 10 metersSupply voltage: DC 5VApplicable to: speakers, headphones, etc.Package List: Host*1AUX Audio Cable*1RCA Audio Cable*1Type-C Power Cord*1English Manual*1Notes: Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance.Due to manual measurement, there might be a tolerance in the product size.