4Pc ZK-1001U 100W Mono Bluetooth Audio Amplifier Module w/ TPA3116D2, DC9-24V, AUX/USB/U-Disk Input, TWS Stereo Pairing

Due to batch differences, products with the new or old logo will be shipped randomly. This does not affect usage. We appreciate your understanding. Description: 1. Good-efficiency connection: transmission distance up to 15 meters, support Bluetooth, AUX, U disk, USB sound card multiple input methods. 2. Built-in boosting circuit: adapted to DC9-24V power supply, especially suitable for battery-powered outdoor and mobile speakers. 3. Multi-function button control: one button to realize play/pause, switch tracks, switch on/off and enter TWS mode, convenient operation. 4. Powerful pair of boxes: two sets of equipment can be combined into left and right channel stereo, strong sense of spatial localization, suitable for DIY production. 5. Intelligent protection mechanism: with anti-reverse, over-temperature, over-current, short-circuit, anti-static protection, to ensure the use of safe and stable. Specification: Product Model: 1001U Product Name: For Mono 100W bluetooth amplifier board module with boost with bass and treble adjustment Qty: 4Pcs Amplifier chip: TPA3116D2 Bluetooth version: 5.3 Bluetooth transmission distance: 15 meters Audio input: Bluetooth + AUX + U disk + USB sound card Audio Output: For Mono 100W Adaptable power supply: DC9-24V, ≥4A (not connect AC), suitable for 7.4V/12V/21V and other batteries, not suitable for 24V batteries, fully charged will be over-voltage. Applicable speakers: 20-100W, 3-8Ω. Volume adjustment: total volume with button Product size: 99x75x22.8mm Single click: play/pause Double click: next song Three clicks: enter or exit TWS mode Long press: power off/on Protection mechanism: input anti-reverse, over-temperature, over-current, short-circuit, anti-static protection Package included: 4Pcs Amplifier board (heat sink and knob caps need to be installed by yourself) Features: Support Wuzhi Audio APP, modify the Bluetooth name, password settings, beep volume adjustment, on/off beep, sleep song, firmware upgrade, etc. Pair box function, true wireless function so that two sets of speakers can be combined into a left and right channel pair box, a stronger sense of spatial positioning. Pair box function: This function requires the purchase of two sets of amplifier boards to form a pair box, this product is very suitable for DIY simple For Mono amplifier, comes with a boost circuit, very suitable for battery-powered, outdoor speakers, trolley speakers, mobile speakers, upgrading or production. After two independent stereo through TWS interconnection, it instantly becomes left and right channel stereo audio, realizing true wireless connection. Kind Reminder： If Bluetooth and AUX work fine, the problem is likely with the USB port. Please help check two points: Inspect the inside of the USB port for any dust, debris or foreign objects. Check whether the USB port is loose or has a cold solder (poor welding) problem. After checking, if it still only plays 1 second and stops, we will immediately send you a new replacement unit. Thank you for your patience.

• Transmission distance up to 15 meters with Bluetooth 5.3, supporting multiple input methods including Bluetooth, AUX, U disk, and USB sound card.
• Built-in boosting circuit for DC9-24V power supply, especially suitable for battery-powered outdoor and mobile speakers.
• Multi-function button control allowing play/pause, track switching, power on/off, and entering TWS mode with a single button.
• Powerful dual-box pairing: two sets can be combined into left and right channel stereo for strong spatial localization, ideal for DIY projects.
• Intelligent protection mechanism including anti-reverse, over-temperature, over-current, short-circuit, and anti-static protection for safe and stable operation.