Drop + grell TWS1X IEM

Drop + grell TWS1X IEM

Ready to Ship
Free Returns in USA
Product Description
We partnered with Axel Grell—legendary engineer behind some of Sennheiser’s most sought-after headphones—to create a true-wireless IEM with unprecedented audiophile-grade performance. Working closely with Axel’s new brand, grell, we left no feature unrefined. Noise-canceling is revolutionized with grell’s innovative psycho-acoustical Noise Annoyance Reduction (NAR) system. Connectivity is optimized with Bluetooth 5.2 and support for the latest codecs. Communication is crystalized with an advanced microphone array and patent-pending Multilayer Turbulence Eliminator (MTE). And sound quality? It’s best-in-class, thanks to custom-designed dynamic drivers. Introducing the Drop + grell TWS1X IEM: your new true-wireless staple.


  • Drop + grell
  • IEM type: Closed-back
  • Drivers: Custom-designed 10 mm dynamic drivers
  • Glass touchpad and touch-sensor operation
  • Maximum SPL: 105 dB (1 kHz)
  • Frequency response: 4 Hz – 22 kHz
  • THD: < 0.06 % (1 kHz, 100 dB SPL)
  • Noise-canceling: Psycho-acoustical Noise Annoyance Reduction (NAR)
  • Microphones: Patent-pending Multilayer Turbulence Eliminator (MTE) microphone array
  • Active noise-canceling: 2 microphones per side
  • Microphones: Matched pairs, low noise
  • Microphone frequency response: 100 Hz – 10 kHz
  • Microphone pick-up pattern: Beamforming array
  • Connectivity: Bluetooth 5.2
  • Bluetooth codecs supported: SBC, AAC, aptX Adaptive, LHDC
  • Playback time (Via AAC, ANC or Transparent Mode off): 5 hours  
  • Battery life (earphones and case combined, ANC off): 45 hours
  • Wireless charging compatible
  • Charging time (earphones from case): 1.5 hours
  • IPX4 splash-proof
  • Weight (per earbud): 0.3 oz (8 g)
  • Weight (case): 2.3 oz (66 g)
Drop + grell TWS1X IEM
Drop + grell TWS1X IEM
Drop + grell TWS1X IEM
Drop + grell TWS1X IEM


  • Charging case
  • USB-A to USB-C charging cable
  • 3 pairs of silicone eartips (S, M, L)
  • 2 pairs of foam eartips (M, L)
  • 3 pairs of wingtips (various fits)


We get it. Sometimes what you ordered just doesn’t work out. If that’s the case for you, don’t fret! All customers (both US and international) may return this item in new, unused condition within 30 days of delivery.


Estimated ship date is May 20, 2022 PT.

Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout for in-stock items, or up until pre-order ships.