As character names:

U+1F508 SPEAKER character (🔈)

As raw characters:

🔈

As a string of HTML entities:

🔈

Decoder output:

Byte number 1 is decimal 240, hex 0xF0, octal \360, binary 11110000
This is the first byte of a 4 byte sequence.

Byte number 2 is decimal 159, hex 0x9F, octal \237, binary 10011111
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 148, hex 0x94, octal \224, binary 10010100
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 136, hex 0x88, octal \210, binary 10001000
This is continuation byte 3, expecting 0 more.

U+1F508	SPEAKER
	= left speaker
	x (right speaker - 1F568)
	x (bullhorn - 1F56B)