HW770 Audio Receiver Board (HW770C (TYPRE C)) — Bluetooth 4.1 Wireless Stereo Music Module, 1 PCS Why choose this module Add modern wireless audio to existing speakers, amplifiers, or DIY projects without replacing the whole system. Stream music from phones, tablets, or other Bluetoothenabled devices while preserving audio quality — supports lossless formats for clearer playback. Simple power requirements (3.7V–5V) and a USB TypeC interface make installation and power supply convenient and flexible. Key benefits Wireless convenience: Receive Bluetooth 4.1 audio from phones and other transmitters so you can play music without cables. quality decoding: Builtin lossless decoder supports WAV, APE, FLAC and MP3 so you can enjoy better fidelity from resolution audio files. Easy integration: Designed as a compact audio receiver board for quick installation into speaker systems, portable devices, or custom audio projects. Wide voltage compatibility: Operates from 3.7V to 5V, compatible with singlecell Liion batteries and common USB power sources (TypeC input on HW770C). Key attributes Model: HW770 (HW770C variant with TypeC connector as listed). Wireless standard: Bluetooth 4.1 receiver. Supported audio formats: WAV, APE, FLAC, MP3 (lossless decoder included). Power supply: 3.7V–5V. Functionality: Wireless stereo music module / audio receiver board for streaming playback. Package quantity: 1 PCS HW770C (TYPRE C). Typical applications Upgrade legacy home or desktop speakers: Add Bluetooth streaming capability to older amplifiers or passive speakers by integrating the HW770C board. DIY Bluetooth speaker projects: Use the board as the wireless receiver and decoder for custom portable speakers powered by a singlecell battery or USB TypeC power. Incar or embedded audio upgrades: Integrate into custom car audio mod projects or as a compact receiver for media playback in compact enclosures. What's included 1 PCS HW770C (TYPRE C) audio receiver board (Bluetooth 4.1, lossless decoding support, 3.7V–5V). Notes for use Intended as an audio receiver module for integration into speaker systems or electronic projects. Ensure correct wiring and appropriate power supply (3.7V–5V) before operation. Compatibility: Works with Bluetoothcapable source devices for audio streaming. Supported file playback depends on the source device and file format. This HW770C (TYPRE C) board provides a straightforward, compact solution to add Bluetooth 4.1 wireless stereo and lossless audio decoding to a wide range of audio projects and existing systems.