Boombest Ln-1036bt Wireless Speaker.

Connectivity: It connects easily via Bluetooth (Version V5.0) and also supports FM radio, USB, and memory card (TF card) playback. Sound: The speaker offers quality, high-definition sound with super bass and a Signal-to-Noise Ratio (SNR) of 90dB. Design: It features a fashion appearance design with a high-quality driver unit, is compact, portable, and includes a carrying strap. Battery: It has a long-lasting rechargeable battery (7.4V, 2000mAh x2) providing approximately 3–5 hours of playback time. Power: The speaker has a 20W output.