The FW5 has been developed by the same FiiO R&D team that created the high-fidelity wire FH9 flagship. In the tiny space of a true wireless earphone, the team managed to fit a large 10mm dynamic drive that handles the low and mid-range frequencies, while higher frequencies are reproduced by 2 Knowles BA drivers. These drivers work together to give powerful yet textured bass while reproducing every last detail in the treble. 

The FW5 integrates FiiO's various cutting-edge technologies to bring a fully integrated, high-fidelity true wireless solution. This is among the first TWS earphones to integrate a high-end Bluetooth chop, high-performance DAC, and a meticulously designed audio circuit to achieve a big quality jump in all aspects. Let the FWS show you what new high-fidelity TWS earphones are truly capable of. 

Features: 

• The Best of all worlds - Fully integrated HiFi TWS Solution
• More cores, better sound - Independent AK4332 DAC 
• More throughput, better stability - High-end QCC5141 Bluetooth chip
• Acoustic goodness, one ear at a time, 1 Dynamic, 2 BA drivers per ear
• Cutting-edge tech - Support high-res Bluetooth formats such as LHDC/aptX Adaptive
• Long battery lifer - Large battery, 7h battery life per charge, 21h= total battery life
• Proven Knowles drivers, for every last detail - Knowles BA handles high-frequencies
• Zero accidental touches with 4 physical buttons
• Clear voice and easy communication - Dual microphone cVc noise cancellation for calls
• Utmost clarity in just one glance - LED indicator lights