Bosch Professional GPB 18V-6 C Solo Bluetooth Speaker

The Bosch Professional GPB 18V-6 C Solo Bluetooth Speaker is a 2.1 portable speaker system designed for construction sites, workshops, and outdoor work environments. It produces 24 W of RMS audio output, supplemented by a dedicated 40 W subwoofer for low-frequency sound. The enclosure carries an IP54 rating, protecting internal components against dust ingress and water splashes encountered during everyday worksite use. Power comes from Bosch Professional 12 V or 18 V battery systems, or alternatively through a USB-C connection. This Solo version ships without a battery pack.

Bluetooth 5.4 handles wireless audio streaming from paired devices. A USB 2.0 port provides wired connectivity for audio playback, while a separate USB Type-C port supports charging of compatible mobile devices directly from the speaker. The unit houses four built-in speakers configured for 4.0 channel audio output. Weighing 5.2 kg, the bag-style portable enclosure has integrated carrying handles and measures 336 mm high, 376 mm wide, and 231 mm deep. An LED indicator displays remaining battery status. The unit has no FM radio tuner and is designed for audio playback only.

• Multi-Speaker Sound function links compatible Bosch speakers for wider audio coverage across large or multi-zone work areas
• 40 W dedicated subwoofer extends low-frequency response below the 24 W RMS main output for fuller sound reproduction
• Compatible with both 12 V and 18 V Bosch Professional battery platforms for integration with existing power tool ecosystems
• USB Type-C charging port powers phones and tablets directly from the speaker, reducing the need for separate chargers on site
• Bluetooth 5.4 maintains stable wireless streaming connections across open construction sites and workshop environments
• Four built-in speakers in 4.0 channel configuration distribute audio evenly for group listening on site