Audio
Output impedance	16 - 600 Ω
Gain	-10 dB
Adjustable volume
Treble adjustment
Battery
Battery technology	Lithium Polymer (LiPo)
Battery capacity	2200 mAh
Charging time	2 h
Battery life	6 h
Packaging content
Cables included	Micro-USB
Ports & interfaces
Headphone connectivity	3.5mm
Line-out
Line-in
Power
Power source	USB
Technical data
Control	3x treble/middle/bass, 1x balance, 1x volume
Signal transmission	Wired
Article width	3.60cm
Interface	Micro USB
Length packaging	0.172m
Battery capacity (max.)	2200mAh
Width packaging	0.142m
Type	Headphone amplifier with 3-band equalizer
Battery life (max.)	6h
Output (1)	3.5mm stereo jack socket, 3.5mm stereo jack socket Line-OUT
Packaging volume	0.0018m³
Net weight	0.250kg
Input	2x 3.5mm stereo input Line-IN
Height packaging	0.073m
Article length	11.50cm
Weight	0.453kg
Charging time (approx.)	2h
Colour	Silver
Special feature	With 3-band equalizer, with rechargeable battery
Article height	5.80cm
Bluetooth
Hi-Res
Technical details
Product colour	Silver
Package volume	1800 cm³
Weight & dimensions
Width	36 mm
Depth	115 mm
Height	58 mm
Weight	250 g
Package weight	453 g
Package depth	172 mm
Package width	142 mm
Package height	73 mm

More sound control and performance on the goPrecise sound tuning: 3-band equalizer and Loudness highlight details and adapt the sound to your preferences.
Flexible signal routing: 2x 3.5 mm Line-In and a separate 3.5 mm Line-Out after the equalizer facilitate integration into existing setups.
Capable headphone drive: Suitable for 16-600 Ohm and reliably delivers sufficient level.
Durable audio connections: Metal/aluminum housing and gold-plated jacks minimize contact issues in everyday use.
Mobile use: 2200 mAh battery for approx. 6 h operation, recharged in approx. 2 h via Micro-USB with 5 V / 0.5 A.
The mobile headphone amplifier with integrated 3-band equalizer provides direct tone correction for clearer highs, defined mids, and powerful bass. The Equalizer and Loudness can be activated via switches, the -10 dB attenuation protects sensitive inputs. Balance and volume controls enable fine adjustment, while the additional Line-Out provides the equalized signal for recorders, mixers, or active speakers.
In mobile setups with a notebook, smartphone, player, or mixer, the device performs just as well as in on-site installations and service deployments. It integrates smoothly into existing AV infrastructures of companies and public institutions and supports consistent sound quality in meeting rooms, training environments, and media workstations.
Ports: 2x 3.5 mm stereo jack Line-In; 1x 3.5 mm stereo jack headphone out; 1x 3.5 mm stereo jack Line-Out (after equalizer)
Controls: 3 rotary controls for treble (3 kHz-20 kHz), midrange (200 Hz-4 kHz), bass (20 Hz-250 Hz); 2 rotary controls for balance (L/R) and volume; switches for Loudness and Equalizer
Attenuation: -10 dB
Stereo crosstalk: 90 dB
Headphone impedance: 16-600 Ohm
Power supply: Micro-USB 5 V / 0.5 A, USB power supply optional
Battery: lithium-polymer, 2200 mAh
Battery life: approx. 6 h
Charging time: approx. 2 h
Housing: metal/aluminum
Contacts: gold-plated
Color: silver
Scope of delivery: 1x headphone amplifier and equalizer, 1x manual, 1x Micro-USB cable, 1x 3.5 mm audio cable plug/plug, magnetic strip for connecting multiple modules