Feature: 1. Plug and play — simply connect and use immediately. Enhances smartphone speaker volume up to 5x for greater o impact. 2. Upgraded design with instant pairing — no setup required. Fast, seamless connection in one second. 3. 5x sound amplification delivers immersive o performance. 4. Delivers both high volume and superior sound quality. Features a powerful passive radiator for enhanced bass and clear, detailed o. Multi-scenario use: music playback, navigation voice guidance, mobile gaming. Long press the power button to turn on/off; short press to mute. Built-in rechargeable battery with Micro-USB charging port. o playback does not drain the phone’s battery. Supports simultaneous charging and playback. Specifications: Note: “A 3dB increase represents a doubling of perceived loudness.” Speaker driver: 32mm, FO ≤80Hz Output power: 2W RMS (THD ≤10%, f=1kHz) Frequency response: 80Hz–20kHz Signal-to-noise ratio: ≥85dB Battery capacity: 250mAh Playtime: Up to 6 hours Charging time: Approx. 45 minutes Standby time: ≥240 hours Color: Transparent Material: Plastic Slight appearance variations between batches may occur but do not affect functionality. Package includes: 1 x Speaker 1 x Charging cable