Feature: 1. Plug-and-play design—simply connect and use immediately. Enhances smartphone speaker output for significantly louder audio. 2. Seamless pairing with no setup required—fast, intuitive connection for effortless operation. 3. Amplifies sound output for an immersive audio experience. 4. Delivers both increased volume and improved sound quality. Features a passive radiator to enhance bass response and overall audio fidelity. Multi-scenario use: music playback, navigation voice guidance, mobile gaming. Power control: long press to power on/off; short press to mute. Built-in rechargeable battery with Micro-USB charging port. Audio playback does not drain the connected device’s battery. Supports playback while charging. Specifications: Speaker driver: 32 mm, FO ≤ 80 Hz Output power: 2 W RMS (THD ≤ 10%, f = 1 kHz) Frequency response: 80 Hz – 20 kHz Signal-to-noise ratio: ≥ 80 dB Battery capacity: 250 mAh Playtime: up to 6 hours Charging time: approximately 45 minutes Standby time: up to 240 hours Color: Transparent Material: Plastic Note: Appearance may vary slightly between batches—functionality remains unaffected. Package Contents: 1 x Speaker 1 x Charging Cable