Outdoor portable placement: Can adapt to any outdoor environment, strong magnetic pull, making the sound as stable as Mount Tai TWS True Wireless Interconnected Surround Stereo: Two audio systems are connected in series, providing a double surround effect and double the shock. Phone holder function: Switch usage scenarios at will, as you please. N39 strong magnet: Using rare earth neodymium iron boron strong magnets, the magnetic force can reach up to 5000 Gauss and can be strongly adsorbed on metal surfaces. Thus achieving enhanced sound and adapting to different scenarios. Shocking and explosive sound quality performance: The use of a Bluetooth 5.0 chip ensures stable sound quality transmission and clearer performance of the sound. The circular cavity is paired with a 1.57-inch full frequency speaker, allowing for a complete and balanced presentation of sound across all frequency bands. Quick connection, one touch sound transmission: Supports NF connection, with one touch connection between phone and audio system Rated power: 5W Horn: 4 Ω 5W Φ 40MM x 1+bass diaphragm x one Frequency response: 60Hz-15KHz Separation degree: ≥ 90dB Signal to noise ratio: ≥ 75dB Battery: 3.7V/1200MHA dual protection board Working voltage: DC5V 1A Charging interface: Type-c Features: NFC sensing continuous, TWS interconnection, hands-free call, Bluetooth playback Bluetooth version: Jerry 5.0 (6925A) Playback time: 2.5-8H "Volume dependent" Bluetooth receiving distance: 10M Charging duration: 2H Colour:Red Material:plastic Package Contents: 1 x Bluetooth Speaker 1 x USB Cable 1 x Instructions in Chinese and English