diff --git a/brainunit/_base.py b/brainunit/_base.py
index 40b34e2..71cf3f8 100644
--- a/brainunit/_base.py
+++ b/brainunit/_base.py
@@ -28,6 +28,8 @@
 from jax.interpreters.partial_eval import DynamicJaxprTracer
 from jax.tree_util import register_pytree_node_class
 
+from ._misc import set_module_as
+
 __all__ = [
   # three base objects
   'Dimension',
@@ -116,6 +118,7 @@ def get_dim_for_display(d):
     return str(get_dim(d))
 
 
+@set_module_as('brainunit')
 def assert_quantity(
     q: Union['Quantity', jax.typing.ArrayLike],
     mantissa: jax.typing.ArrayLike,
@@ -424,6 +427,7 @@ def __deepcopy__(self, memodict):
     return self
 
 
+@set_module_as('brainunit')
 def get_or_create_dimension(*args, **kwds) -> Dimension:
   """
   Create a new Dimension object or get a reference to an existing one.
@@ -600,6 +604,7 @@ def __str__(self):
     return s
 
 
+@set_module_as('brainunit')
 def get_dim(obj) -> Dimension:
   """
   Return the dimension of any object that has them.
@@ -630,6 +635,7 @@ def get_dim(obj) -> Dimension:
       raise TypeError(f"Object of type {type(obj)} does not have a dim")
 
 
+@set_module_as('brainunit')
 def get_unit(obj) -> Unit:
   """
   Return the unit of any object that has them.
@@ -655,6 +661,7 @@ def get_unit(obj) -> Unit:
       raise TypeError(f"Object of type {type(obj)} does not have a unit")
 
 
+@set_module_as('brainunit')
 def have_same_dim(obj1, obj2) -> bool:
   """Test if two values have the same dimensions.
 
@@ -679,6 +686,7 @@ def have_same_dim(obj1, obj2) -> bool:
   return (dim1 is dim2) or (dim1 == dim2)
 
 
+@set_module_as('brainunit')
 def has_same_unit(obj1, obj2) -> bool:
   """
   Check whether two objects have the same unit.
@@ -698,6 +706,7 @@ def has_same_unit(obj1, obj2) -> bool:
   return unit1 == unit2
 
 
+@set_module_as('brainunit')
 def fail_for_dimension_mismatch(
     obj1, obj2=None, error_message=None, **error_arrays
 ):
@@ -779,6 +788,7 @@ def fail_for_dimension_mismatch(
     return dim1, dim2
 
 
+@set_module_as('brainunit')
 def fail_for_unit_mismatch(
     obj1, obj2=None, error_message=None, **error_arrays
 ) -> Tuple['Unit', 'Unit']:
@@ -844,6 +854,7 @@ def fail_for_unit_mismatch(
     raise UnitMismatchError(error_message, unit1, unit2)
 
 
+@set_module_as('brainunit')
 def display_in_unit(
     x: jax.typing.ArrayLike | 'Quantity',
     u: 'Unit',
@@ -894,6 +905,7 @@ def display_in_unit(
   return x.in_unit(u).repr_in_unit(precision=precision)
 
 
+@set_module_as('brainunit')
 def unit_scale_align_to_first(*args) -> List['Quantity']:
   """
   Align the unit units of all arguments to the first one.
@@ -937,6 +949,7 @@ def unit_scale_align_to_first(*args) -> List['Quantity']:
   return args
 
 
+@set_module_as('brainunit')
 def array_with_unit(
     floatval,
     dim: Dimension,
@@ -973,6 +986,7 @@ def array_with_unit(
   return Quantity(floatval, dim=get_or_create_dimension(dim._dims), dtype=dtype)
 
 
+@set_module_as('brainunit')
 def is_dimensionless(obj: Union['Quantity', 'Unit', 'Dimension', jax.typing.ArrayLike]) -> bool:
   """
   Test if a value is dimensionless or not.
@@ -992,6 +1006,7 @@ def is_dimensionless(obj: Union['Quantity', 'Unit', 'Dimension', jax.typing.Arra
   return _to_quantity(obj).dim.is_dimensionless
 
 
+@set_module_as('brainunit')
 def is_unitless(obj: Union['Quantity', 'Unit', jax.typing.ArrayLike]) -> bool:
   """
   Test if a value is unitless or not.
@@ -1007,10 +1022,10 @@ def is_unitless(obj: Union['Quantity', 'Unit', jax.typing.ArrayLike]) -> bool:
       ``True`` if `obj` is unitless.
   """
   assert not isinstance(obj, Dimension), f"Dimension objects are not unitless or not, but got {obj}"
-
   return _to_quantity(obj).is_unitless
 
 
+@set_module_as('brainunit')
 def is_scalar_type(obj) -> bool:
   """
   Tells you if the object is a 1d number type.
@@ -3116,6 +3131,7 @@ def top_replace(s):
   return list(top_replace(seq))
 
 
+@set_module_as('brainunit')
 def check_dims(**au):
   """
   Decorator to check dimensions of arguments passed to a function
@@ -3359,6 +3375,7 @@ def new_f(*args, **kwds):
   return do_check_units
 
 
+@set_module_as('brainunit')
 def check_units(**au):
   """
   Decorator to check units of arguments passed to a function
diff --git a/brainunit/_unit_constants.py b/brainunit/_unit_constants.py
index 5d4aed4..4755ceb 100644
--- a/brainunit/_unit_constants.py
+++ b/brainunit/_unit_constants.py
@@ -19,7 +19,7 @@
 have to be imported explicitly. You can use ``import ... as ...`` to import them
 with shorter names, e.g.::
 
-    from brainpy.math.units import faraday_constant as F
+    from brainunit import faraday_constant as F
 
 The available constants are: