2025 Officia Oneplus Buds 4 TWS Wireless Bluetooth Earphone LHDC 5.0 55dB Active Noise Canceling 45h Battery Life For Oneplus 13

Product model (headphones/charging box)
: E513A

Sounding unit
: 11mm+6mm dual dynamic coil speaker

Speaker sensitivity
: 118±1.3dB @1mW

Frequency response range
: 15Hz-40kHz

Microphone sensitivity
: -38±1dB

Bluetooth codec
: LHDC5.0/AAC/SBC

Bluetooth version
: 5.4

Bluetooth effective distance
: 10m

Battery Type
: Rechargeable lithium-ion battery

Headphone battery: 62mAh

Battery capacity

Charging case battery: 530mAh

Noise reduction opening: 6H/24H

Music playback time (AAC encoding, default settings, 50% volume)

Permeability: 6.5H/27H

Noise reduction: 11H/45H

Noise reduction/transparency: 5.5H/22H

Music playback time (LHDC encoding, default settings, 50% volume)

Noise reduction: 9H/37H

Headphones for about 50 minutes

Charging time

The whole machine is about 80 minutes

Charging input (charging box)
: 5V-1.5A

Charging input (single headset)
: 5V=0.2A

Charging output (charging box to headphones)
: 5V0.4A

Charging port
: Type-C

Waterproof grade (headphones)
: IP55

Net weight - complete machine
: 49.02+1g

Net weight - headphones
: 4.73±0.2g

Net weight - charging box
: 39.57±1g

Size - Whole machine
: 65.4mmx52.4mmx25.3mm

Size - Headphones
: 31mmx20.6mmx24.2mm

Q1: Instructions on OnePlus Buds 4 LHDC5.0

A1: High-quality Bluetooth-encoded LHDC needs to be supported by both the mobile phone and the headset before it can be used. Non-OnePlus/OPPO requires high-quality Bluetooth encoding, and it is necessary to ensure that the phone supports LHDC. OnePlus Buds4's LHDC5.0 is not backward compatible. If OnePlus/OPPO mobile phones need to achieve the effect of LHDC5.0, you need to ensure that the mobile phone supports LHDC and the system version is ColorOS 13.1 and above: Please consult the corresponding mobile phone manufacturer whether other brand phones support LHDC5.0.