SPECIFICATIONS

Application: Speaker

Brand Name: Gaqqee

Choice: yes

Condition: New

Dissipation Power: Low power consumption

Frequency Range: 87.5MHz-108MHz

High-concerned chemical: None

Operating Temperature: Details page

Origin: Mainland China

Output Power: 5W+5W stereo

Package: TQFP

Power Supply Options: Type-C 5V or 3.7V lithium battery (18650 flat-top battery)

Quantity: 1

Supply Voltage: 2.5-5.5V

Type: Module

is_customized: Yes

Product Features:

1. The RDA5807M module offers high sensitivity and effectively blocks out noise to ensure clear sound quality

2. Real-time display of frequency and volume; intuitive operation with a high-tech aesthetic at night

3. Supports use whilst charging, automatically switching between lithium battery and Type-C power supply

4. Built-in 3.3V buck-boost module ensures stable power supply and strong compatibility

5. Adjustable angle for precise signal capture, preventing intermittent reception in weak signal areas

Product Description:

The main control chip is the STC15W408AS microcontroller; the FM radio module utilises the RDA5807M, with a frequency range of 87.5–108 MHz covering virtually all global bands, offering high sensitivity, low noise and strong anti-interference capabilities; The amplifier section utilises the AXS2031 digital amplifier chip (rather than the TDA2822), which features a simple circuit design, high output power, and the ability to maintain distortion-free performance even at voltages as low as 2.5V; the voltage regulation section employs a 3.3V buck-boost module, ensuring a stable 3.3V supply to the microcontroller and LED display for normal operation and display when the input voltage is between 2.5V and 5.5V. This is in contrast to the AMS1117 voltage regulator chip, where the microcontroller fails to operate correctly and the LED display malfunctions when the voltage drops below 3V.

Product Specifications:

Supply Voltage: 2.5–5.5V

Power Supply Options: Type-C 5V or 3.7V lithium battery (18650 flat-top battery)

Radio Band: FM

Frequency Range: 87.5MHz–108MHz

Output Power: 5W + 5W stereo

Note: Both power supply methods can be used simultaneously

Omnidirectional Antenna: Adjustable in any direction for optimal reception

Audio Output Interface: Compatible with headphones or a 3.5mm audio cable for connection to an amplifier

Type-C Power Interface: When powered via Type-C, the battery is charged simultaneously; charging automatically stops once the battery is fully charged

Volume Up and Volume Down: Press briefly once to increase or decrease the volume by one level

Frequency Up and Frequency Down: Press and hold to automatically scan for stations; press briefly to change the frequency by 0.1 MHz

Blue LED display: Displays the current volume level or received frequency in real time

Product Contents:

Radio kit *1 (batteries not included)