The Astrum ST020 Mini Bluetooth Speaker is an ultra-portable wireless speaker with a smooth ABS outer layer and lanyard, designed to fit right in your palm while delivering powerful bass and loud punchy sound. Perfect for desktop music, hiking trails, or poolside parties, this compact speaker features TWS interconnection for seamless stereo pairing, IPX5 water resistance, and multi-input support via TF card and USB. With 5W RMS output, 52mm drivers, and a built-in microphone for hands-free calls, it ensures clear audio and versatile use. Enjoy up to 5 hours of playtime with a quick 1.5-hour recharge, making it ideal for on-the-go lifestyles. Features Ultra-portable speaker with lanyard True wireless interconnected stereo (TWS) Powerful bass with 5W RMS output IPX5 water-resistant technology Supports TF card and USB input Rechargeable battery with up to 5 hours of music Built-in microphone for hands-free calls Technical Specifications Connectivity: BLE Wireless Range: Up to 10 meters Speaker Output: 5W Drivers: 52mm driver unit Frequency Response: 120Hz – 18kHz Impedance: 4Ω bass SNR: 75dB Charging Time: Up to 1.5 hours Play Time: Up to 5 hours Dimensions: 94 × 94 × 50 mm Weight: 260g (approx.) Warranty: 24 Months