Installment option available at check out page
The ATH-TWX9 truly wireless earbuds offer the freedom to customize your sound space for an advanced audio experience. These headphones create an immersive audio experience and feature digital hybrid noise canceling technology. With unique features including deep-UV sterilization, 360 Reality Audio for a realistic 3D sound stage, and Snapdragon Sound™ platform for higher quality music, video, and calls, the ATH-TWX9 set themselves above the rest as the best truly wireless headphones.
* IPX4 equivalent means that there is no harmful effect even if water is splashed from all directions. It cannot be used in hot and humid places such as baths. It is not completely waterproof.
** The system is more than 99% effective against E. coli and bacteriophage viruses, and more than 90% effective against Staphylococcus aureus, but it is not effective against all bacteria and viruses. The effectiveness against the novel coronavirus has not been verified.
The ATH-TWX9 truly wireless earbuds offer the freedom to customize your sound space for an advanced audio experience. These headphones create an immersive audio experience and feature digital hybrid noise canceling technology. With unique features including deep-UV sterilization, 360 Reality Audio for a realistic 3D sound stage, and Snapdragon Sound™ platform for higher quality music, video, and calls, the ATH-TWX9 set themselves above the rest as the best truly wireless headphones.
Type |
Dynamic |
Driver Diameter |
5.8 mm |
Frequency Response |
10 to 40,000 Hz |
Sensitivity |
102 dB/mW |
Impedance |
16 ohms |
Weight |
Headphone: Approx. 5.4 g (0.19 oz) (L side), approx. 5.4 g (0.19 oz) (R side); Charging case: Approx. 55.9 g (2.0 oz) |
Charging Time |
Headphones: Approx. 2.5 hours *3 |
Operating Temperature |
5 °C to 40 °C (41 °F to 104 °F) |
Operating Time |
Continuous transmission time (music playback): Max. approx. 6.0 hours *3 (headphones), Max. approx. 18.5 hours *3 (if charging case is used in combination) |
Microphone Type |
MEMS type |
Microphone Sensitivity |
-38 dB (1 V/Pa, at 1 kHz) |
Microphone Frequency Response |
100 to 16,000 Hz |
Microphone Polar Pattern |
Omnidirectional |
Power Supply |
Headphones: DC 3.85 V lithium ion battery |
Water-Resistant (drip-proof) Performance |
IPX4*4 |
Accessories Included |
• USB charging cable (30 cm (12"), USB Type-A / USB Type-C) |
Bluetooth® Version |
Bluetooth version 5.2 |
Operating Range |
Line of sight - approx. 10 m (33') |
Maximum RF Output |
10 mW EIRP |
Frequency Band |
2.402 GHz to 2.480 GHz |
Modulation Method |
GFSK, Pi/4DQPSK, 8DPSK |
Spread Spectrum Method |
FHSS |
Compatible Bluetooth Profiles |
A2DP, AVRCP, HFP |
Support Codec |
Qualcomm® aptX™ Adaptive audio, Qualcomm® aptX™ audio, AAC, SBC |
Supported Content Protection Method |
SCMS-T |
Supported Sample Rates |
44.1 kHz, 48 kHz, 96 kHz *1 |
Supported Bit Rates |
16 bit, 24 bit *2 |
Transmission Band |
10 Hz to 47,000 Hz; (when Qualcomm® Snapdragon Sound 96kHz sampling) 20 Hz to 20,000 Hz |