Power source:

DC 3.85 V: Built-in lithium-ion rechargeable battery

DC 5 V: When charged using USB

Operating temperature:

0 °C to 40 °C (32 °F to 104 °F)

Charging time:

Approx. 2 hours (Headset)

Approx. 3 hours (Charging case)


  • Charging and usage hours may be different depending on the conditions of use.

Charging temperature:

5 °C to 35 °C (41 °F to 95 °F)


Approx. 4.8 g × 2 (0.17 oz × 2) (Headset (including earbud tips (M)))

Approx. 35 g (1.24 oz) (Charging case)

Communication specification

Communication system:

Bluetooth Specification version 5.2


Bluetooth Specification Power Class 1

Maximum communication range:

Line of sight approx. 10 m (30 ft) (*1)

Frequency band:

2.4 GHz band (2.4000 GHz - 2.4835 GHz)

Compatible Bluetooth profiles (*2):



Supported Codec (*3):





Transmission range (A2DP):

20 Hz - 20 000 Hz (Sampling frequency 44.1 kHz)

20 Hz - 40 000 Hz (Sampling frequency LDAC 96 kHz, 990 kbps)

*1The actual range will vary depending on factors such as obstacles between devices, magnetic fields around a microwave oven, static electricity, reception sensitivity, antenna’s performance, operating system, software application, etc.

*2 Bluetooth standard profiles indicate the purpose of Bluetooth communications between devices.

*3Codec: Audio signal compression and conversion format

Design and specifications are subject to change without notice.

Compatible iPhone/iPod models

iPhone 12 Pro Max

iPhone 12 Pro

iPhone 12

iPhone 12 mini

iPhone SE (2nd generation)

iPhone 11 Pro Max

iPhone 11 Pro

iPhone 11

iPhone XS Max

iPhone XS

iPhone XR

iPhone X

iPhone 8 Plus

iPhone 8

iPhone 7 Plus

iPhone 7

iPhone SE

iPhone 6s Plus

iPhone 6s

iPhone 6 Plus

iPhone 6

iPhone 5s

iPod touch (7th generation)

iPod touch (6th generation)

(As of February 2022)