Compact aluminum alloy Bluetooth speaker with card support Key benefits Stable wireless range: up to 10 meters in open space, with walls and buildings potentially reducing signal quality Durable, lightweight build: aluminum alloy construction for everyday portability Versatile playback: Bluetooth 5.0 connection plus card support for direct playback from a memory card Richer audio in a small chassis: 36 mm diameter driver delivering clear highs and full midrange Easy to power and charge: nominal 3.7V system voltage with 5V charging Long enough play time for casual use: approximately 1 to 3 hours on a single charge with a 300 mAh battery What it does Functions as a Bluetooth speaker and supports card playback for standalone use when a Bluetooth source is not available Simple control via a dedicated adjustment button Compatible with devices that use Bluetooth 5.0 and earlier generations Size, material and design Material: aluminum alloy for a sturdy, lightweight form factor Speaker diameter: 36 mm Compact and portable design suitable for desks, bags, or small workspaces Performance and power Bluetooth specification: 5.0 for stable wireless connections Battery capacity: 300 mAh Play time: about 1–3 hours depending on volume and content Voltage: 3.7V Charging voltage: 5V Speaker output: 4.3W Frequency response: 20 Hz to 20 kHz Specifications at a glance Transmission range: up to 10 meters in open, unobstructed space (signal may be affected by walls or buildings) Material: aluminum alloy Bluetooth: 5.0 Play time: approximately 1–3 hours Battery: 300 mAh Voltage: 3.7V Charging voltage: 5V Speaker: 4.3W, diameter 36 mm Frequency response: 20 Hz–20 kHz Card support: yes Adjustment method: button Use scenarios Desktop and office use: pair with a laptop, tablet, or phone to enjoy music, podcasts, or conference audio while you work On the go or travel: small and light for easy packing, providing music or audio playback when you are commuting or outdoors Card playback without a Bluetooth source: insert a card to play music directly when a Bluetooth device is not available Compatibility and practicality Designed to work with Bluetooth enabled devices that support Bluetooth 5.0 and earlier Simple button controls for quick playback adjustments Card support provides flexible playback options in locations where Bluetooth connections are limited or unavailable