audio-video equipment: https://allegro.pl/oferta/akumulator-aa-r6-ni-mh-2600mah-1-2v-recyko-gp-14293846621

reliable transmission in 2 modes - TX (transmitter) or RX (receiver)
built-in rechargeable battery - up to 5 h in TX mode, up to 7 h in RX mode

Ultra-strong Bluetooth stereo speakers with subwoofer
Deep and dynamic Bass!!
Total Power of the Set: 15w R.M.S.
Built-in MP3 player AND FM Radio
microSD card slot and USB port for Flash drive
Bluetooth Wireless CONNECTION (A2DP profile)
AUX socket for connecting an external audio device
Wooden Enclosure with LED display
Operating time approx. Up to 6 hours

• wireless connectivity via Bluetooth version V5.0
• Hands-free function (built-in microphone)
• micro SD card slot, AUX audio port
• Battery voltage indicator
• charger with two sockets - USB 1: 5V / 1A and USB 2: 5V / 2.1A (3.1A max)
• Operating range: 87.5-108 MHz
• power supply from the car cigarette lighter socket 12V/24V

• Enclosure with powerful power bank
• wireless connectivity via Bluetooth V5.2
• range up to 10m
• Working Time: Up to 8 hours / up to 44 hours with charging case
• Built-in sensitive microphone
• compatible with Android, iOS, Windows
  

very good sound quality
wireless connectivity via Bluetooth version V4.2
hands-free function (built-in microphone)
USB socket for pendrive and slot for micro SD cards
battery voltage indicator
charger with two sockets - USB 1: 5V / 1A and USB 2: 5V / 2.4A (3.4A max)
Operating range: 87.5-108 MHz
power supply from cigarette lighter socket 12V/24V

 IP67 waterproof
speaker power: 4,2W
wireless connectivity via Bluetooth 5.0

• Extra powerful stereo Bluetooth speaker with subwoofer
• Deep and dynamic bass !!
• total power of the set: 15W 
• built-in MP3 player and FM Radio
• microSD card slot and USB port for USB flash drive operation
• wireless connectivity via Bluetooth 5.1
• AUX jack for connecting an external audio device
• USB-C charging socket

4K HD 2.0 version
supported resolution - up to 4K / 60Hz
nylon braided cable with reinforced aluminium tips

• wireless connectivity via Bluetooth version V4.2
• Hands-free function (built-in microphone)
• USB port for a USB flash drive and a slot for micro SD cards
• Battery voltage indicator
• charger with two sockets - USB 1: 5V / 1A and USB 2: 5V / 2.4A (3.4A max)
• Operating range: 87.5-108 MHz
• power supply from the car cigarette lighter socket 12V/24V

support for resolution up to 4K (3840x2160) @ 60Hz
LEDs to indicate the operation of the device

• Bluetooth 5.4 receiver for car radio, audio systems, speakers, etc.
• support for all devices with a 3.5 mm AUX mini jack socket
• USB power supply
• built-in microphone, answer calls
• Music control
• RGB backlighting

everActive Lithium+ Professional battery,dedicated to JBL Xtreme

Battery life: 5000mAh at 7.4V (37WHr)

Total cell capacity: 10000 mAh at 3.7V

2 years warranty

everActive Lithium+ Professional battery,dedicated to JBL Flip 4

Battery life: 3000mAh at 3.7V (11.10WHr)

2 years warranty

powerful Bluetooth speaker with subwoofer
Deep and dynamic bass !!
total power of the set: 18W R.M.S.
built-in MP3 player and FM radio
microSD card slot and USB port for USB flash drive support
wireless connectivity via Bluetooth (A2DP profile)
AUX jack for connecting an external audio device
wooden case with LED display
operating time approx. 7 hours

Gold-gold-gold polished 3.5mm mini Jack connectors.
The cable is made of very flexible and durable silicone,resistant to distortion and damage due to twisting and bending.
Premium cable - elegant, reinforced aluminum tips.
Cable compatible with all devices with standard AUX port 3.5mm.

• Total power of the set: 40W R.M.S.
• Bluetooth 5.0+ EDR, A2DP, AVRCP
• kareoke function
• support for micro SD cards and USB drives
• FM radio function with automatic station selection
• TWS - allows you to pair a second speaker
• Colorful illumination

• Total power of the set: 40W R.M.S.
• Bluetooth 5.0+ EDR, A2DP, AVRCP
• kareoke function
• osupport for micro SD cards and USB drives
• FM radio function with automatic station selection
• Colorful illumination

• gold-plated, polished 3.5mm mini Jack connectors.
• The cable is made of highly flexible and durable silicone, resistant to distortion and damage due to twisting and bending.
• Premium standard cable - elegant, reinforced aluminum terminals.
• cable compatible with all devices with a standard 3.5mm AUX port.