5W, Bluetooth version 5.3 with a range of up to 10 meters, Speaker specifications: 2.05-inch sound unit (3Ω/5W) with monaural (mono) audio output, Battery and runtime: Playback time with RGB lights off: Up to 9 hours, Playback time with RGB lights on: Up to 8 hours, Charging time: Approximately 3 hours, Charging input parameters: 5V DC 1A, Main functions: Bluetooth connectivity, call function, TF card playback, auxiliary (AUX) input, FM radio tuner, TWS technology (for pairing two speakers in stereo), and RGB lighting effects, Sound quality: Signal-to-noise ratio greater than 80dB, Water resistance rating: IPX4 (splashproof), Product dimensions: It measures 11.4 x 11.4 x 13.2cm