These are open-ear wireless earphones that don't block the ear canal. They feature a magnetic detachable boom microphone and a flexible design that allows easy attachment to either ear. With a 5-microphone AI noise cancellation (ENC) configuration, they eliminate up to 99.9% of environmental noise, enabling clear and natural voice calls even in noisy environments. The suggested retail price is $149.99 (approximately 23,000 yen). These earphones have only been used for about 2 hours in reviews and are in almost new condition. The ear hook parts have been lightly disinfected. The box and all accessories are included. 【Contents】 ・Charging case ・Earphone body (left and right) ・Magnetic boom microphone ・User manual ・USB Type-C cable (unused) 【Product Overview】 ■ Brand: OpenRock ■ Product Name: OpenRock Link 20 ■ Color: Black ■ Type: Open-ear ■ Materials: ABS resin + liquid silicone + electroplated parts ■ Operation: Button operation ■ Driver: 15 x 10mm large dynamic driver ■ Bluetooth version: 6.0 ■ Battery: ・Earphones: 62mAh ・Charging case: 550mAh ■ Maximum battery life: ・Music playback: Up to 13 hours (single) / Up to 52 hours (with case) ・Talk: Up to 9 hours (single) / Up to 36 hours (with case) ■ Size: ・Earphone body: 52.03 x 43.07 x 17.63mm ・Microphone length: 71mm ・Charging case: 104 x 52.6 x 27.5mm ■ Weight: ・Earphone body: 9.02g (actual measurement) ・Microphone: 1.74g (actual measurement) ・Charging case + earphones: Approximately 84.98g (actual measurement) ■ Charging connector: Magnetic charging port ■ Built-in microphone: 5 microphones (4 MEMS + 1 ECM) ■ Microphone sensitivity: -38±1dB (main) / -38±2dB (sub) ■ Fast charging: Supported (5 minutes of charging provides 1 hour of talk time) ■ Find my earphones function: Included ■ Multipoint connection: Supported (connect to 2 devices simultaneously) ■ Dedicated app: OpenRock ■ Waterproof performance: ・Earphones: IPX7 ・Microphone: IP55 #Earphones #WirelessEarphones #Headset