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Dongguan Tonstep offers the K3, a pair of IPX7-rated Bluetooth 5.2 TWS earbuds with transmission distance up to 45ft or 13.7m. This unit supports hi-fi sound, HD calls, voice assistant commands, single or binaural switching and touch control. It has a 13mm vibrating diaphragm and an LED power indicator. The 500mAh charging case sources power via USB Type-C. On a full charge, the earbuds can play music for up to 35 hours.
Dongguan Tonstep can output 300,000 units per month, and provides OEM and ODM services.
Analyst’s comment: Bluetooth 5.2 audio devices consume less power, and have reduced latency and triple the transmission distance.
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