This bluetooth is designed with digital Class D amplifier, build-in Bluetooth receiver.

1. Built-in digital Class D amplifier:
   WS-301BT: 1CH amplifier, 1*10W
   WS-302BT: 2CH amplifier, 2*10W
   WS-304BT: 4CH amplifier, 4*10W
   
   
2. Built-in Bluetooth for wireless music streaming – works with almost all Bluetooth devices (iphones, Androids, smart phones, ipads, tablets, etc).
   
   
3. Support all Bluetooth protocols: HFPV1.5, A2DPV1.2, AVRCPV1.4, HSP1.2, GAVDP1.2, IOP.
   
   
4. With 3.5mm stereo AUX local input.
   
   
5. DC12V power supply with AC adapter.
   
   
6. Full-range 5¼" dual-cone dynamic speaker driver.
   
   
7. Frame-mounted spring-loaded clamps provide secure, low-noise connections and easy installation.
   
   
8. Attractive color ABS resin finish with white grille suits any decor.

This speaker is an ideal economy choice for industrial and commercial applications in hotels, shops, home, classroom, restaurants, coffee bars and where background music is needed.