• Bluetooth, FM–signal, line-in and disk mode
• 72 hrs radio listening on a single charge or 40 hours of listening via bluetooth
• uv resistant paint
• compatible with ortho remote and orthoplay app
• dimensions: 232.5 x 284 x 57.5 mm

Natural Sound

Four tailor-engineered speaker elements deliver pure quality sound and a stereo field that fills the entire room. a flow-optimized bass reflex duct delivers deep natural bass.

72 hrs listening

on one charge you can listen to the radio for three sleepless days (nothing we recommend) or get 40 hours of listening via bluetooth. all thanks to the high capacity li-on battery.

The Wireless Part

OB–4 is a wireless speaker that supports bluetooth classic for audio streaming and bluetooth low energy for wireless volume control via the orthoplay app and ortho remote.

Slim And Portable

big sound in a small package. OB–4's compact size and built-in handle means you can take quality sound anywhere, from your living room to the studio and beyond.

Motorized Userinterface.

Use your fingers to grab, spin and interact with the sound.digital-motion controlled volume knob and tape reel. we call it the next level of user experience.

Speaker principle flow: Optimized bass reflex ductand semi unified chamber

Frequency range: 52 – 25000 Hz

Dimensions: 232.5 x 284 x 57.5 mm

Weight: 1.7 kg

Materials: Amorphous Polymer Glass fibre Reinforced PC and Milled Aluminium.

Design features: Fine Pitch Tweeter Grille, Gel Dampened Handle, custom Direct Drive Volume Knob and tape dial.

Max SPL @ 1 m stereo configuration: 92 dB unsupported wideband

Bass Capability @ 1 m: 104 dB SPL supported

Active crossover frequency: 3.5 kHz

Configuration: Stereo 2 + 2

Tweeter: High efficiency ferrofluid cooled neodymium driver

Woofer: long throw high power capacity neodymium driver.

Amplifier: 2 x 38 W ultra high efficiency class D

Wireless: Bluetooth® classic (AAC) - Bluetooth® 5 LE - FM radio

Inputs: 3.5 mm stereo in - (2.8 Vpp for 0 dBFS)

Battery life: Normal volume FM: 72 hours - Bluetooth high volume: 8 hours

General power requirements: AC 100-240 V 50/60 Hz - Universal built-in power supply

Included accessories: Mains power cable - Antenna

Ortho Remote:

Ortho remote is the wireless remote control designed for OD-11 and OB–4. with ortho remote you adjust the volume, skip track and pause your music from any room, at up to 20 meters distance.

Ortho remote has a magnetic back so you can stick it to any magnetic metal surface, like a fridge. the non-slip bottom makes it rest steady on any surface. experience real 1-click music.

Over 2 years battery life:

Ortho remote uses Bluetooth® low energy to communicate with OD-11 and OB–4. this in combination with 2 X AAA batteries makes it last over two years without the need to change batteries.

1-Clickmusic:

Ortho remote is created to simplify your music listening experience. Pair ortho remote with your OD-11 and all it takes is 1 click for your favorite music to start playing. Simply tap to start playing, turn the knob to adjust volume, double tap to skip track, and tap again while playing to pause. it's as easy as that.no software or drivers needed.

MIDI controller:

the ortho remote can be used as a wireless midi controller, to control logic, garage band or any other BLE-MIDI compatible software or devices.

Works with iOS and android too:

Ortho remote follows the universal Bluetooth® standard for HID – human interface devices. this makes it work seamlessly with any music player on iOS, mac OS X and android. please note that ortho remote is not officially supported by windows.

Technical Specs:

•  Bluetooth®  LE compatible
•  iOS & android compatible
•  over 2 years battery life
•  BLE-MIDI compatible
•  software and driver free
•  dual neodynium magnets
•  non-slip silicon bottom

Dimensions in mm: 68 X 23 (W X H)

Dimensions in inch: 2.67 X 0.88inch (W X H)

Weight: 104g / 0.23lbs