Sennheiser ACCENTUM Plus Wireless / Sony WH-CH720N

Sennheiser ACCENTUM Plus Wireless: ACCENTUM Plus Wireless around-ear wireless headphones; black (700176) and white (700177). The cheaper ACCENTUM Wireless and the higher-end MOMENTUM 4 are separate models.

Sony WH-CH720N: WH-CH720N closed over-ear wireless headphones; black, white, blue and pink. The WH-CH710N (previous generation), WH-CH520 (no ANC) and the WH-1000X series are separate models.

SpecificationSennheiser ACCENTUM Plus WirelessSony WH-CH720N
Release year20242023
TypeHeadband, around-the-ear (circum-aural) wireless headphones; fold flat

Sennheiser promises a light, ergonomic fit with a soft silicone inner headband and cushioned earcups; folded flat it measures about 16.5 × 19.5 × 4.8 cm.

Sennheiser		—
Driver37 mm dynamic; 10 Hz–22 kHz; 106 dB SPL; THD below 0.3%

Sennheiser says the driver is mounted at an angle. Impedance is 560 ohms in active mode and 95 ohms in passive (wired, powered off) mode.

Sennheiser		—
Noise cancellingHybrid adaptive ANC; Transparency mode; automatic anti-wind mode

Hybrid ANC measures noise with microphones both outside and inside the earcup; the adaptive version changes the cancellation strength automatically with ambient noise. Transparency mode lets outside sound in with a touch.

Sennheiser		Active noise cancelling with Integrated Processor V1 and Dual Noise Sensor; Ambient Sound mode

Microphones inside and outside each cup sample noise to generate an inverse signal; Ambient Sound mode lets you hear surroundings without removing the headphones.

Sony
Bluetooth and codecsBluetooth 5.2, class 1; SBC, AAC, aptX, aptX Adaptive; A2DP, AVRCP, HFP, HSP

aptX Adaptive is a Qualcomm codec that adjusts bitrate to link quality on compatible devices.

Sennheiser		Bluetooth 5.2; A2DP, AVRCP, HFP, HSP; SBC and AAC; about 10 m range

AAC works well as the default codec on iPhones; no high-bitrate codec is listed.

Sony
Battery800 mAh lithium-ion; up to 50 hours with ANC on; full charge about 3.5 hours; 5 hours from 10 minutes

Sennheiser measured the 50 hours with an iPhone at medium volume; charging is via USB-C at 5 V, up to 700 mA.

Sennheiser		Music up to 35 hours with NC on, 50 hours off; calls up to 35 hours NC on, 40 hours off; about 3.5 hours to charge over USB Sony
Controls and sensorsTouchpad on the right earcup; dedicated pairing button; Smart Pause when removed

Tap plays or pauses, sliding up and down sets volume, and swiping sideways skips tracks or answers calls.

Sennheiser		—
MicrophonesTwo MEMS microphones with beamforming for noise reduction; 50 Hz–8 kHz Sennheiser—
AppSennheiser Smart Control (iOS and Android); 5-band equaliser, presets, Sound Personalization

Sound Personalization adjusts the sound to the user with a listening test developed with the Fraunhofer Institute.

Sennheiser		—
In the boxHeadphones, USB-C charging cable, carry case, auxiliary (3.5 mm) audio cable, quick guide Sennheiser—
Weight227 g SennheiserAbout 192 g Sony
Driver and frequency—30 mm dynamic driver; 7–20,000 Hz (JEITA); 20–20,000 Hz over Bluetooth (44.1 kHz) Sony
Multipoint—Connection to two Bluetooth devices at the same time

For example, you can switch between a phone and a laptop without re-pairing.

Sony
Wired use—Detachable cable of about 1.2 m with gold-plated L-shaped 3.5 mm plug; passive operation

When the battery runs out you can keep listening passively over the cable.

Sony
Microphone and processing—Precise Voice Pickup beamforming mic; wind noise reduction structure; DSEE

DSEE tries to restore high frequencies lost in compressed music files.

Sony
Impedance and sensitivity—NC on 325 Ω / off 31 Ω (1 kHz); NC on 108 dB/mW / off 99 dB/mW Sony