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【Voltage Compatibility】
Our products are selected to support international voltage ranges (e.g. 100–240V).
However, please make sure your local voltage is compatible before use, as incorrect voltage may still cause malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without appropriate voltage or equipment.
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😊 [Universal Design for a Revolutionary Comfortable Fit] Developed based on data from over 10,000 wearers, these headphones feature a unique ergonomic design that combines an optimal blend of soft TPU silicone and titanium alloy memory wire to evenly distribute pressure on the ears while providing a stable fit. Designed specifically for those with small ear canals and the elderly, they offer a natural fit and comfortable fit, even over 10 hours of continuous use. The ultra-thin earhook design is 30% slimmer than previous models, significantly reducing interference with glasses and accommodating a wide range of ear shapes. Using the included silicone attachment, you can easily switch from standard earhook mode to neckband mode, ideal for intense exercise.
😊 [12mm x 17mm Dual Magnetic Drivers & Active Sound Leakage Suppression Technology] The 12x17mm large-diameter dual magnetic dynamic drivers reproduce clear sound with deep bass and delicate high-frequency detail. The newly developed "Active Sound Leakage Suppression Algorithm" analyzes and corrects the entire frequency range in real time, reducing sound leakage by up to 40% (according to our own measurement standards). Enjoy music without worrying about those around you, even on trains and in crowded environments, with a design that respects privacy in public spaces. The four-band AI hybrid microphone system and call noise cancellation technology ensure clear audio transmission to the other party, even in strong winds or noisy environments. (Bluetooth codec: SBC, AAC supported)
⚡ [Bluetooth 6.0 & Dual-Device Simultaneous Connection - Office 20m/0.06 Second Latency] Equipped with the latest Bluetooth 6.0 technology, it supports connections up to 20m even in an average Japanese office environment (based on in-house testing). Simultaneous connection with smartphones, PCs, and tablets is possible, and the device automatically switches between PC meetings and smartphone calls. In game mode, it achieves ultra-low latency of approximately 0.06 seconds, allowing you to hear enemy footsteps and skill activation sounds before other players.
🔋 [40-Hour Battery Life & 10-Minute Quick Charge - No Charging Needed for a Week] With industry-leading battery life (10 hours on the device alone and 30 hours on the charging case) (based on in-house laboratory data), you can enjoy long journeys like a round-trip Shinkansen train ride between Tokyo and Osaka (approximately 6 hours) without needing to recharge. A 10-minute quick charge provides up to 2 hours of use, so you can charge while getting ready in the morning and fully cover your commute. The charging case's LED display lets you visually monitor the remaining battery life, eliminating the worry of running out of battery.
🙋♂️ [Multi-function to meet user needs] Equipped with Auto EQ, the headphones automatically optimize sound quality based on the genre of music you're listening to. Furthermore, using the dedicated app [TRUEFREE], you can freely customize the equalizer. From powerful bass for the gym to a gentle tone suitable for an office environment, you can achieve the optimal setting for any situation with just one touch. The 2-way switchable silicone sound-conducting earbuds (S/M sizes included) allow you to instantly switch between ambient sound detection at the gym and sound isolation for the office. The soft silicone design reduces ear strain, making them ideal for long-term use. *For the best experience, we recommend updating the firmware via the app.
📦Package contents: Main unit, charging case, silicone sound conducting parts (2 types), USB-C cable, instruction manual (Note: When charging, please use a 5V/1A compliant adapter. Using an incompatible adapter may result in incorrect charging.) 🔍3-step optimal wearing method: ① Insert from the top of the ear ⇒ Fit tightly to the shape of the auricle ② Rotate 45 degrees backward ⇒ Fits naturally with the contours of the concha ③ Light pressure adjustment ⇒ Ensures optimal positioning in the ear canal
The TRUEFREE EarFit DS1 wireless earphones are open-back earphones designed for those seeking a balance between music and reality, even in the midst of a busy daily life. Featuring a lightweight design that minimizes strain on the ears, they offer stable Bluetooth 6.0 connectivity and IPX5 waterproofing, ensuring durability for everyday use in a variety of situations, from crowded commutes to intense gym workouts and focused office work. The open-back design, which doesn't block out surrounding sounds, is ideal for ensuring safety while cycling to work or hearing your children's voices while working from home. The proprietary TPU + titanium alloy memory wire earhook ensures a snug fit and comfort, even for those with small ear canals or who are prone to pain after extended use. In terms of sound quality, the dynamic EQ adjustment function reproduces a balanced sound from low to high frequencies. Select "3D Spatial Audio" mode in the dedicated app to experience immersive surround sound while watching movies or playing games. Furthermore, the multi-point connection function allows simultaneous connection to a smartphone and PC, making it easy to switch between business and personal life.
These earbuds thoroughly address the issues inherent to open-ear headphones, such as earbuds easily falling off and sound leakage. The flexible ear hooks and active sound leakage suppression technology allow you to use them without worrying about disturbing others, even during intense workouts like running or in a quiet office environment. Up to 40 hours of continuous playback, including the charging case, and fast charging (10 minutes of charging gives you 2 hours of use) eliminate the worry of running out of battery when traveling or on the go. Users have commented that the earbuds stay put even when sweating at the gym, and that they can hear their family's voices without worrying about running out of battery. They are also particularly comfortable, being lighter than traditional earbuds. TRUEFREE's one-year warranty and Japanese-language customer support are a great way to help you choose your first pair of earbuds.