Bluetooth 5.0 Speark, Outdoor Portable Waterproof Wireless Speaker For Home, Party Battery capacity: 1800mah lithium battery. Bluetooth version: 5.0. Loudspeaker: 5W * 2 transmission distance: about 10m. Frequency response: 100Hz-20KHz, SNR: ≥ 90dB. Working voltage: 3.7V, distortion: < 1%. Charging voltage: DC5V. Charging interface: Micro USB. Call duration: about 3 hours. Music Playing: about 3.5H. Standby time: ≥ 30 days. Charging time: About 2.5h (different charger specifications have different charging time). With flexible metal diaphragm, surging and powerful, carrying strong bass. With a deep and heavy bass, passive resonance technology + titanium alloy diaphragm + intelligent audio decoding chip to create. Passive membrane resonance technology uses the principle of automatic low frequency tracking compensation to effectively enhance the bass range and create a stronger and wider sound range. Dynamic sound intelligent chip, adjust the oscillation frequency of the speaker to make the sound more clear. Full of electricity, the phone is power-off and there is speaker, measured standby power for one month. Rice-shaped buttons, non-slip and beautiful, sensitive pressing of the pressure control button, Nylon waterproof and dense textile fabric, skin-friendly non-slip base. Bluetooth 5.0 stable and fast, built-in high-definition microphone intelligent noise reduction mobile phone calls and voice chats are as clear as face-to-face. Audio cable function, stable and fast, use the audio cable to connect to the computer TF card expansion/ U disk extended playback.