Sony ECM-77B Miniature Omni-directional Lavalier Microphone

Sony ECM-77B Miniature Omni-directional Lavalier Microphone
 Sony ECM-77B Miniature Omni-directional Lavalier MicrophoneSony ECM-77B Miniature Omni-directional Lavalier Microphone 

Used SONY ECM-77B Miniature Omni-directional Lavalier Microphone

The Sony ECM-77B is a miniature omni-directional lavalier microphone designed for professional broadcast, sound reinforcement and recording applications. The condenser element features a miniature profile allowing it to be easily concealed in performance and broadcast situations. The omni-directional pattern provides even frequency and sensitivity response at the direct and off-axis sections of the microphone capsule.

The ECM-77 provides a wide frequency response of 40Hz - 20kHz. The wide frequency response enables the microphone to accurately reproduce audio signal from a wide variety of sources. The ECM-77B is powered with an external 48 Volt phantom power source or AA alkaline battery. The ECM-77B is manufactured with a variety of connectors to accommodate various input devices, this version features a standard 3-pin XLR male connection.

Omni-directional Pattern
The omni-directional pattern provides even sensitivity and frequency response at the direct and off-axis sections of the microphone capsule.

Dual Power
The ECM-77B is powered with a single AA alkaline battery or external 48 volt phantom power source.

Miniature Profile
The miniature, unobtrusive profile enables the microphone to be easily concealed in broadcast and performance situations.

Standard XLR Connection
The ECM series is available in a variety of connections, this version features a standard 3-pin XLR male connection.

In the box:

  • Sony ECM 77B Mic
  • 3 pin XLR Connection
  • Lav Clip
  • Lav Mesh Windshield


Capsule Type Electret Condenser
Frequency Response 40 Hz to 20 kHz
Directivity Omni-Directional
Sensitivity -52.0 dB±2 dB
Output Impedance 150Ω±20%, Balanced
Dynamic Range 90 dB or more
Signal-to-Noise Ratio 64 dB or more
Inherent Noise 30 dB SPL or less
Induction Noise from External Magnetic Field 5 dB SPL or less
Wind ​Noise 40 dB SPL or less (with windscreen)
Maximum Input Sound Pressure Level 120 dB SPL
Connector B type Supplied with XLR-3-12C (Male) connector in power supply unit (Single AA Size Battery)
Mic Cable 9.8 feet / 3m
Power Requirements DC1.5 V (AA size battery) or +48 V Phantom Power
Battery Operating Time Approx 6000h (LR6)
Power Consumption

Internal Battery: 0.3 mA or less

External Battery: 2 mA or less


o5.6 X 12.5 mm (Mic Head)

o20 X 133 mm (Power Unit XLR Type)

o12/16 X 51/4 inches (Power unit XLR type)

o1/4 X1/2 inches (Mic Head)


Approx. 4.3 oz (with power supply unit)

Approx. 121.5 g (with power supply unit)

Delivery Services

At Pinknoise Systems we like to offer our customers a wide choice of delivery options for their orders, and our prices are affordable and competitive. We also use only the best, most reliable couriers and delivery services to get your equipment where it needs to be - quickly and securely. Please find an outline of our services, prices and timescales below.

Service Timescale Price
UK Mainland Royal Mail Small Parcel 2-4 Days £3.99
UK Offshore Royal Mail 2-4 Days £9.99
UK Standard Courier 2-4 Days £6.49
UK Express Courier Next Day £7.99
International Shipping From 1-8 Days (Full Details) From £15.00

Delivery Times

Delivery times are based on when the packages leaves our premises. Sometimes, due to stock restrictions or a non completed order, delivery may take longer as there is a delay with dispatch. We will always notify customers of any issues and problems via email or telephone. If your order is urgent or details change please do let us know.

For full details, fees, and time schedules, please see our Delivery Information page.

Returns & Refunds

New items: You can return goods you have ordered from us for any reason, at any time within 7 working days of receipt, for a full refund or for an exchange for a different product from our range. The cost of returning goods to us shall be borne by you, the customer, in all circumstances without exception.

Items must be packed suitably and insured for full loss in the event of a delivery problem. Pinknoise Systems will not be responsible for lost or damaged return goods. Lost or damaged goods may effect the level of refund you receive.

Used items: Please note this does not apply to used item unless they are deemed faulty.

For full details of our returns policy, please click here.

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(£470.00 Exc. VAT)




Delivery hours
UK ORDERS: Order soon for delivery on using our express service

Model:  SONY-ECM77B
Part No.:  ECM-77B
Manufacturer:  Sony

Contact us for advice

Need advice? Give us a call

(+44) 01453
825 802

International Delivery

International delivery

We ship across Europe and around the world and have a multitude of shipping options available to our international customers during the checkout, including express delivery for urgent orders.


We have a next day shipping option available for the UK with our DPD courier service, which features delivery alerts, personal delivery preferences and driver tracking with the DPD mobile app.


Spread the cost to maximise your capital. Just call our helpful sales team on 01453 825 802, from 9.30am - 5.30pm, to discuss these options and find out what's available to you.

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Sony ECM-77B Miniature Omni-directional Lavalier Microphone

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