BS-3 BoxBeat · 2000mAh Metal-Case Bluetooth Speaker | BLUESEED
BS-3 combines zinc alloy, ABS and PC construction with a 40mm speaker rated at 5W RMS. It uses a 2000mAh 18650 battery and the JieLi JL7014F5 Bluetooth 5.4 EDR solution, with DC 5V/1A input and a stated unobstructed transmission distance of at least 10 meters.

BS-3 BoxBeat · 2000mAh Metal-Case Bluetooth Speaker
Speaker unit: 4Ω 5W, diameter 40MM Solution: Jieli V5.4 EDR, model: JL7014F5 Battery capacity: 2000mAh, battery model 18650 Bluetooth frequency: 2.4GHz-2.480GHz Input voltage: DC 5V/1A Output power: Speaker power RMS 5W Material: Zinc alloy, ABS plastic, PC Operating temperature range: -25℃ to 65℃ Transmission distance: ≥10 meters (no obstacles)