Bluetooth 4.2 Audio Receiver with Amplifier 2x5W

The Bluetooth receiver from DFRobot has two built-in 5 W amplifiers and drives two passive speakers directly, making a small stereo speaker. It receives music via Bluetooth 4.2 and reconnects automatically to the last paired device after switching on. It is powered via micro USB or a 3.7 V lithium battery.

Note: Do not connect an additional amplifier and do not connect the negative poles of the two channels together, otherwise the amplifier chip is destroyed.

Recommended Accessories:

• 5W 4Ohm speaker in plastic housing
• Speaker 4Ohm 3W 50mm

Features:

• Two amplifiers with 5 W each for passive speakers
• Speakers 2 to 8 Ω, 3 to 5 W, DFRobot recommends 4 Ω with 5 W
• Bluetooth 4.2
• Reconnects automatically to the last paired device after switching on
• Power via micro USB or 3.7 V lithium battery
• Bluetooth name XWF-M18-M28-M38
• No protection circuit for lithium batteries on the board, DFRobot recommends a LiPo charger module
• Keep away from radio transmitters and metal, the Bluetooth chip is sensitive to electrostatic discharge

Application Examples:

• Small Bluetooth speaker with two speakers
• Running old passive speakers wirelessly
• Portable music box with battery

Documentation:

• DFRobot product page DFR0720

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR0720
• Power supply: 3.7 to 5 V, micro USB or 3.7 V lithium battery
• Bluetooth: 4.2
• Range: 15 m line of sight
• Output power: 2 × 5 W
• Speakers: 2 to 8 Ω, 3 to 5 W, recommended 4 Ω with 5 W
• Audio formats: WAV, APE, FLAC, MP3
• Dimensions: 20 × 45 × 7 mm
• Weight: 11 g

Scope of Delivery:

• 1× Bluetooth 4.2 audio receiver with amplifier 2x5W
• 1× 2-pin cable
• 2× JST 2-pin socket for soldering