Country of Origin China

Realizing bouncy wireless sound and uncompromising high sound quality.

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  • To be Delivered by HKTV within 1 - 4 days 
  • Sold by Digi Life
  • This product is non-returnable
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Hi-Fi grade ES9118 from ESS which is known for faithful reproduction of the original sound with DAC and amplifier parts.
Achieves highly transparent and clear sound quality by controlling the clock wirelessly transmitted from the input signal side and suppressing jitter.
Uses aluminum housing for suppressing unnecessary resonance in bodies.
50mW + 50mW high output headphone amplifier exploiting full potential of connected headphones.
Compatible with LDAC/aptX/AAC.
Equipped with a switch for allowing selection of output impedance modes according to driver characteristics.
Sensitively adjustable to volume levels suitable for individual tracks with 32-step multistage digital volume.
LED indicator for displaying operation states.
8 hours of continuous use.

AT-PHA55BT Bluetooth Specifications
Communication Systems:Bluetooth Version.4.2
Operating Range:Line of sght approx. 10m
Operating Frequencies:2.4GHz band (2.402GHz ~ 2.480GHz)
Bluetooth Profile Support:A2DP, AVRCP, HFP, HSP
Audio Codec Support:LDAC, Qualcomm aptX, AAC, SBC
Content Protection:SCMS-T
Frequency Range:20 ~ 40,000 Hz
Operating Time:Approx. 8 hours (Continuous use),Approx. 100 hours (Standby)
Operating Temperature Range:5℃ ~ 40℃
Charge Time:Approx. 3 hours
Accessories Furnished:USB charging cable (30cm),Clip, Pouch

AT-PHA55BT Specifications (Amplifier)
Maximum Output Power:50mW + 50mW (16Ω,THD10%),25mW + 25mW (32Ω,THD10%),2.5mW + 2.5mW (300Ω,THD10%)
Output Connector:Ø3.5 mm stereo mini-jack
Weight:28 g
Input Connections:Micro USB Type-B
Dimensions:H79mm x W32mm x D11mm

AT-PHA55BT Specifications (Microphone)
Polar Pattern:Omnidirectional
Sensitivity:-36dB (1V/pa at 1kHz)
Frequency Response:50 ~ 8,000 Hz

After sales service:
The product is for the first seven days from the date of receipt. There are no surface scars, neat packaging, and accessories. The product is not working properly can be replaced.
The product is operating normally and there is no return service.
The product featuresAudio Technica One-year maintenance service. Guests are required to keep the warranty sticker on the box and the HKTV Mall receipt for the Audio Technica Customer Service Center.

This is authorized goods.

Warranty Period : 1 Years
Warranty Provided By : Audio-Technica Service Center in Hong Kong

Service Centre Details :

Address : Unit K, 9/F., Kaiser Est. (Ph.2), 51 Man Yue Street, Hunghom, Kowloon, Hong Kong
Email :
Contact : 2356 9268
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