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Compare DALI IO-4 vs Sennheiser HD 250BT vs Sennheiser IE 300

Price

MSRP
70 USD
300 USD
Offers (incl. referral links)

Connectivity

Ports
3.5mm + USB-C
USB-C
3.5 mm
Wireless Connectivity
Bluetooth 5.0

Construction

Battery | Capacity
190 mAh
Cable
125cm, reinforced with para-aramid
Colors
Army Green, Chalk White, Iron Black, Caramel White
Drivers
50 mm free edge paper fibre cone
7mm Extra Wide Band (XWB) transducer
Form Factor
Over-ear headphones, wireless headphones
Supra-aural (on-ear) headphone
In-ear headphones
Headphone Type
Closed headphones, Dynamic headphones
Dynamic, closed
Single Dynamic Driver, Pressure Chamber
Material
Closed back circumaural (over ear)
Microphone
ECM transducer

Dimensions

Weight
320 g
125 g
4 g

Function

Bluetooth Codecs
AAC, aptX, aptX HD
AAC, aptXTM, aptX Low Latency
Bluetooth Profiles
Bluetooth 5.0
Microphone Pickup Pattern
Omni-directional
Noise Cancellation
No
Operating Temperature
0°C to +40°C
Weather Resistance
IP53

Performance

Battery Life
60 h
25 hours
Charging Time
2.5 h
Up to 3 hours
Frequency Response
10Hz - 20kHz
20 Hz to 22,000 Hz
6 Hz to 20 kHz
Impedance
25 ohms (Via 3.5mm)
Max Sound Level
100 dB
110 dB (1 kHz/0 dBFS)
124 dB (1 kHz / 1 Vrms)
Microphone Frequency Response
100 Hz to 10,000 Hz
Power Supply
5 V, 100 mA max
Sensitivity
200 mV rms / 175 mV rms

Production

Accessory
Eartips: Silicone and memory foam ear adaptors in S / M / L (6 in total) | Cable: Optional balanced cables (2.5mm or 4.4mm)
Debut
2019-10
2021-01-06 (CES 2021)
2021-01-12 (CES 2021)
Made In
Germany
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