Grundig Jam Bluetooth Speaker Black


For everyone who wants more from music than 9-to-5.
This turns every walk out the door into a jam session: with its fresh design in the trend colors green and orange as well as black, the Bluetooth speaker GBT Jam puts everyone in a good mood. Thanks to a battery life of up to 30 hours, this doesn’t diminish so quickly – thanks to the rechargeable lithium-polymer battery! The Bluetooth streaming range of the device is also amazing at 30 meters, which also applies to the sound quality. The housing is waterproof, which makes it possible to enjoy music uninterruptedly even when the sky is overcast. You can even take calls with ease using the hands-free function. And if necessary, the speaker can even be used as a power bank thanks to the micro-USB charging function.

Power bank function

It goes without saying that the GBT Jam Bluetooth speaker is a bank – but it’s also a power bank! Its power battery makes it ideal for charging your smartphone via its USB port, for example, while you continue to listen to music.

sound performance

You automatically listen very carefully: With a total output power of 3.5 W RMS, the Bluetooth speaker GBT Jam provides impressive sound. Catchy, stays in the memory.

battery life

The Bluetooth speaker GBT Jam works smoothly for a 30-hour week. That’s how long you can enjoy music with the GBT Jam thanks to the rechargeable lithium polymer battery with 3.7 volts and 2,500 mAh. Very few music lovers have such staying power.

Waterproof housing

Guaranteed watertight fun: the Bluetooth speaker GBT Jam won’t let its party be spoiled even by a heavy summer downpour. The IPX7 protection class of its housing stands for this.

Technical specifications

Charge your smartphone – thanks to the power bank function
Bluetooth V5.0 with True Wireless Stereo (TWS) technology
Up to 30 hours of battery life with built-in battery level indicator
3.5 W RMS total output power for impressive sound
Music streaming range up to 30 meters
Integrated passive radiator for dynamic bass reproduction
Waterproof housing (IPX7)
Rechargeable lithium polymer battery with 3.7 V and 2500 mAh