Transformers TF-T01 Yellow Bluetooth Earbuds

Transformers TF-T01 Bluetooth earbuds in yellow use version 5.3 with a range of 8–10 meters. They operate on 2.402–2.480 GHz frequency and feature a 13 mm transducer. Frequency response spans 20 Hz to 20 kHz with 32 Ω impedance and 109 dB sensitivity. AAC codec is supported. Each earbud has a 33 mAh battery; the charging case holds 300 mAh.