Sony ECM-77B Electret Condenser Miniature Lavalier Microphone
Product Code: 1632595

Sony ECM-77B Electret Condenser Miniature Lavalier Microphone

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Finance options available

Spread the cost over 12, 24 or 36 months
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The Sony ECM-77B is a miniature omni-directional lavalier microphone designed for professional broadcast, sound reinforcement, and recording applications. The condenser element has a miniature profile, allowing it to be easily concealed in performance and broadcast situations. Its omni-directional pick-up pattern provides even frequency and sensitivity response.

Key Features: Sony ECM-77B Electret Condenser Miniature Lavalier Microphone

  • Omni-directional pattern provides even sensitivity and frequency response
  • Powered with a single AA alkaline battery or external 48 V phantom power
  • Unobtrusive profile enables easy concealment in broadcast and performance situations
  • Features a standard 3-pin XLR male connection


  • Capsule Type: Electret condenser
  • Frequency Response: 40 Hz to 20 kHz
  • Directivity: Omni-directional
  • Sensitivity *(1): -39.0 dB (11.2 mV)
  • Output Impedance *(2): 2.5kO±30%, unbalanced
  • Dynamic Range: 90 dB or more
  • Signal-to-Noise Ratio *(3): 64 dB or more
  • Inherent Noise *(4): 30 dB SPL or less
  • Induction Noise From External Magnetic Field *(5): 5 dB SPL or less
  • Wind Noise *(6): 40 dB SPL (with windscreen)
  • Maximum Input Sound Pressure Level *(7): 120 dB SPL
  • Connector: XLR-3-12C (male)
  • Mic Cable: 1.2 m (3.9 feet)
  • Power Requirements: DC 1.1 V to 10.0 V
  • Power consumption: 0.4 mA or less
  • Dimensions *(8): 5.6 x 12.5 mm (f0.25 x 0.5")
  • Weight: Approx. 25.5n g (0.9 oz)
  • Supplied Accessories:
    • Single/horizontal type tie clip (1)
    • Metal-mesh type windscreen (1)

*(1) 0 dB = 1 V/Pa, at 1 kHz
*(2) Output impedance at 1 kHz
*(3) A-weighted, 1 kHz, 1 Pa.
*(4) 0dB SPL = 20? Pa.
*(5) dB SPL/1E-7 T, 0 dB SPL = 20? Pa.
*(6) Wind noise at 2m/s (0 dB SPL = 20?Pa.)
*(8) The values for dimensions are approximate

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Product Specification

Pick-up pattern Omnidirectional
Type Lavalier
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Your flexible credit options available

Interest Bearing

with a choice of repayment plans over 12, 24 or 36 months 9.9% APR (representative)

Buy now pay later

36 month loan with a six month deferral period, 18.9% APR (representative)

Interest Bearing Finance

This option comprises term loan with a choice of repayment plans over:

  • 12 months
  • 24 months
  • 36 months

The balance of the finance agreement is payable directly to Novuna Consumer Finance in equal monthly instalments by monthly direct debit. The direct debit payments will commence at the end of the first month following receipt of your goods. The interest rate charged is 9.9% APR. Late payment and early repayment penalties apply; full details of these will be provided in the loan agreement pack.

  12 Months 24 Months  36 Months 
Cash price  £503.00  £503.00  £503.00
Deposit £0.00 £0.00 £0.00
Loan Amount £503.00 £503.00 £503.00
Monthly Instalment 11 x £44.10 23 x £23.09 35 x £16.11
Final Instalment £44.10 £23.09 £16.11
Total Amount Repayable £529.20 £554.16 £579.96
Representative 9.9% APR 9.9% APR 9.9% APR

Buy now pay later

The Buy Now Pay Later option comprises a 36 month loan following a six month deferral period.

During the six-month deferral period, it is possible to pay off the loan, either by way of a lump sum or in smaller amounts. If the loan is partially repaid within six months, the remaining interest will be adjusted to reflect the new balance. If the loan is fully repaid within the six-month deferral period, then no interest is payable, however, a £29 early settlement fee is payable in respect of repayments within these six months.

Following the six-month deferral period, Novuna Personal Finance will initiate a monthly direct debit payment for the remaining duration of the loan. Interest will be charged at a rate of 18.9% APR on outstanding balances (backdated to the first date of the loan). Novuna Personal Finance will send a reminder letter approximately one month before the six-month deferral period is due to elapse.

  Balance settled in full within the six month deferral period Balance NOT settled in full within the six month deferral period
Cash price £300 £300
Deposit £0 £0
Loan Amount £300 £300
Settlement fee £29 £0
Settlement payment £329 -
Monthly Instalment - 36 x £11.57
Total Amount Repayable £329 £416.52
Representative 18.9% APR 18.9% APR

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Product Code: 1632595-wex Manufacturers Part Number: ECM-77B