Feature: 1. Plug-and-play design—simply connect and use immediately. Enhances smartphone speaker output for significantly louder audio. 2. Seamless pairing—no setup required. Fast, one-second connection for effortless operation. 3. Amplifies sound output for an immersive audio experience. 4. Delivers both high volume and improved sound quality. Features a passive radiator to enhance bass response and overall audio performance. Multi-scenario use: music playback, navigation voice guidance, mobile gaming. Function controls: long press to power on/off; short press to mute/unmute. Built-in rechargeable battery with Micro-USB charging port. Audio playback does not drain the connected device’s battery. Supports playback while charging. Specifications: Note: “A 3dB increase in sound pressure level corresponds to a doubling of perceived loudness.” Speaker driver: 32mm, FO ≤80Hz Output power: 2W RMS (THD ≤10%, f=1kHz) Frequency response: 80Hz–20kHz Battery capacity: 250mAh Playtime: up to 6 hours Charging time: approximately 45 minutes Standby time: up to 240 hours Color: Transparent Material: Plastic Slight variations in appearance between batches may occur—does not affect functionality. Package Includes: 1 x Portable Speaker 1 x Charging Cable