Jkoailiwi BWVA04-B 5 W Bluetooth 5.3 Voice Amplifier

Portable Voice Amplifier with Lapel Microphone

The Jkoailiwi BWVA04-B is a 5 W battery powered voice amplifier designed for teachers, tour guides and presenters who need hands-free sound reinforcement. It pairs with a clip-on lavalier microphone that attaches to a collar or tie, removing the fatigue of a headset. Bluetooth 5.3 provides wireless audio streaming from a phone or tablet for background music or lesson content. The unit weighs 182 grams and measures 3.23 by 1.25 by 4.33 inches.

Suited for Voice Projection in Medium Spaces

This amplifier suits educators, yoga instructors and meeting leaders who address groups of around 50 people in classrooms, studios or small halls. The 20 metre Bluetooth range and 2000 mAh battery support extended sessions without a power outlet. It is not intended for users who require higher output power for large venues, multiple microphone channels, or rack-mount installation. Buyers needing wired XLR inputs or a built-in recorder should consider other equipment.

Sustained Use with Battery and Wireless Operation

During continuous operation the 5 W amplifier draws power from the internal battery rated at 2000 mAh, allowing hours of speaking time before recharging. The Bluetooth 5.3 link maintains a stable connection up to 20 metres, so the speaker can move freely without signal drop-outs. The compact plastic enclosure dissipates heat passively, so output remains consistent during long lessons or tours. Charging is via the supplied cable, restoring both the amplifier and microphone for the next session.